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The Nervous System, Part 2 - Action! Potential!: Crash Course Anatomy & Physiology #9
What do you and a sack of batteries have in common? Today, Hank explains.
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ
Chapters:
Introduction: What do Neurons Do? 00:00
Your Body is a Sack of Batteries 1:18
How Electricity Works Inside Your Nervous System 3:18
Sodium-Potassium Pump 4:04
Types of Ion Channels: Voltage-Gated, Ligand-Gated, and Mechanically-Gated 4:51
Graded Potential vs. Action Potential 5:45
Depolarization 6:19
Repolarization 7:35
Hyperpolarization 8:00
Refractory Period 8:14
Review 10:06
Credits 10:29
Crash Course Kids Preview! 10:39
Crash Course is on Patreon! You can support us...
published: 02 Mar 2015
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नसों के खिंचने से दर्द के उपचार (Nerves dard ke upchar)
नर्व के दर्द के उपचार - नसों के खिंचने से होने वाले दर्द के उपाय ! परभावित स्थान का अत्यधिक उपयोग न करें: जब आपकी नस में होने वाले दर्द की डायग्नोसिस हो जाए तो आपको अपनी देखभाल करना शुरू कर देना चाहिए |
मालिश करें: नस के होने वाले दर्द पर दबाव डालने से तनाव को मुक्त करने और दर्द कम करने में मदद मिल सकती है |
ध्यान दें- आप हमारे चैनल से जरूर जुड़े रहे। इस चैनल में हम आपको हेल्थ टिप्स इन हिंदी (Health tips in Hindi), घरेलू नुस्खे, सेहत बनाने के उपाय और स्वास्थ्य टिप्स बताएंगे।
इस चैनल की विडियो में आयुर्वेद (Ayurved) के रामबाण नुस्खे भी बताएंगे।
आप हमारे चैनल से जुड़े रहे।
Our official Youtube channel link-
https://www.youtube.com/channel/UCdZAmYl6K6easFcF0Jq-boA
Our Official Website for more information-
http://www.hindigyan.com/
published: 28 Dec 2016
-
The Synapse
In this video Paul Andersen explains how the synapse allows information to travel from one axon to the next. He starts by differentiating between electrical and chemical synapses. He then details the action of the chemical synapse whereby an incoming action potential triggers the opening of voltage-gate Ca2+ channels that trigger the release of neurotransmitters from vesicles into the synaptic cleft. These neurotransmitters dock with receptors and can send either excitatory or inhibitory messages onward. He also explains how long term potentiation can lead to memory formation.
Music Attribution
Intro
Title: I4dsong_loop_main.wav
Artist: CosmicD
Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/
Creative Commons Atribution License
Outro
Title: String Theory
Artist:...
published: 06 Feb 2017
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How To Improve Blood Circulation in Brain | Five Ways To Improve Blood Circulation To The Brain
How To Improve Blood Circulation in Brain | Five Ways To Improve Blood Circulation To The Brain
What happens if there happens to be a case where there is not enough blood to reach the brain at one time? When the brain locally becomes anemic, the tissue of the brain gradually dies and the connection between the cells is lost. And the risk of stroke also increases ...
Actually it is easy to increase the amount of blood flowing in the brain in everyday life. By doing so, you can reduce the risk of serious diseases such as stroke, and even improve the brain functions such as memory and concentration !
Let's see five easy ways to increase blood flow to the brain.
1. Aerobic exercise.
2. Healthy meal.
3. Goodbye to cigarettes, obesity, stress.
4. Let's do brain training everyday.
5. Positiv...
published: 29 Sep 2017
-
Endocrine System, Part 1 - Glands & Hormones: Crash Course Anatomy & Physiology #23
Hank begins teaching you about your endocrine system by explaining how it uses glands to produce hormones. These hormones are either amino-acid based and water soluble, or steroidal and lipid-soluble, and may target many types of cells or just turn on specific ones. He will also touch on hormone cascades, and how the HPA axis affects your stress response.
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ
Chapters:
Introduction: What are Hormones? 00:00
Endocrine System 1:48
Glands & Organs of the Endocrine System 2:42
Hormones Trigger Reactions in Target Cells 3:33
Water Soluble vs Lipid Soluble Horm...
published: 22 Jun 2015
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Neurons or nerve cells - Structure function and types of neurons | Human Anatomy | 3D Biology
Neurons or nerve cells - Structure and function | Human Anatomy | Biology
The nervous system is an essential part of the human body that helps in the transmission of signals across the various parts of the body, that is, it releases messages back and forth from the brain to the different parts of the body, and also helps in the coordination of voluntary and involuntary actions of the body.
At the cellular level, the nervous system consists of a special type of cell, called the neuron, also known as a "nerve cell". The neurons connect to each other using a synapse (which is a structure that acts like a pathway connection that transmits the signals to the other cells) to form the nervous system.
Neurons have special structures that allow them to send signals rapidly and precisely to other...
published: 27 Apr 2013
-
How do nerves work? - Elliot Krane
View full lesson: http://ed.ted.com/lessons/how-do-nerves-work
At any moment, there is an electrical storm coursing through your body. Discover how chemical reactions create an electric current that drives our responses to everything from hot pans to a mother's caress.
Lesson by Elliot Krane, animation by TED-Ed.
published: 09 Aug 2012
11:44
The Nervous System, Part 2 - Action! Potential!: Crash Course Anatomy & Physiology #9
What do you and a sack of batteries have in common? Today, Hank explains.
Pssst... we made flashcards to help you review the content in this episode! Find them...
What do you and a sack of batteries have in common? Today, Hank explains.
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ
Chapters:
Introduction: What do Neurons Do? 00:00
Your Body is a Sack of Batteries 1:18
How Electricity Works Inside Your Nervous System 3:18
Sodium-Potassium Pump 4:04
Types of Ion Channels: Voltage-Gated, Ligand-Gated, and Mechanically-Gated 4:51
Graded Potential vs. Action Potential 5:45
Depolarization 6:19
Repolarization 7:35
Hyperpolarization 8:00
Refractory Period 8:14
Review 10:06
Credits 10:29
Crash Course Kids Preview! 10:39
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Instagram - https://www.instagram.com/thecrashcourse/
CC Kids: http://www.youtube.com/crashcoursekids
https://wn.com/The_Nervous_System,_Part_2_Action_Potential_Crash_Course_Anatomy_Physiology_9
What do you and a sack of batteries have in common? Today, Hank explains.
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ
Chapters:
Introduction: What do Neurons Do? 00:00
Your Body is a Sack of Batteries 1:18
How Electricity Works Inside Your Nervous System 3:18
Sodium-Potassium Pump 4:04
Types of Ion Channels: Voltage-Gated, Ligand-Gated, and Mechanically-Gated 4:51
Graded Potential vs. Action Potential 5:45
Depolarization 6:19
Repolarization 7:35
Hyperpolarization 8:00
Refractory Period 8:14
Review 10:06
Credits 10:29
Crash Course Kids Preview! 10:39
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Instagram - https://www.instagram.com/thecrashcourse/
CC Kids: http://www.youtube.com/crashcoursekids
- published: 02 Mar 2015
- views: 7033584
5:43
नसों के खिंचने से दर्द के उपचार (Nerves dard ke upchar)
नर्व के दर्द के उपचार - नसों के खिंचने से होने वाले दर्द के उपाय ! परभावित स्थान का अत्यधिक उपयोग न करें: जब आपकी नस में होने वाले दर्द की डायग्नोसिस हो जाए तो ...
नर्व के दर्द के उपचार - नसों के खिंचने से होने वाले दर्द के उपाय ! परभावित स्थान का अत्यधिक उपयोग न करें: जब आपकी नस में होने वाले दर्द की डायग्नोसिस हो जाए तो आपको अपनी देखभाल करना शुरू कर देना चाहिए |
मालिश करें: नस के होने वाले दर्द पर दबाव डालने से तनाव को मुक्त करने और दर्द कम करने में मदद मिल सकती है |
ध्यान दें- आप हमारे चैनल से जरूर जुड़े रहे। इस चैनल में हम आपको हेल्थ टिप्स इन हिंदी (Health tips in Hindi), घरेलू नुस्खे, सेहत बनाने के उपाय और स्वास्थ्य टिप्स बताएंगे।
इस चैनल की विडियो में आयुर्वेद (Ayurved) के रामबाण नुस्खे भी बताएंगे।
आप हमारे चैनल से जुड़े रहे।
Our official Youtube channel link-
https://www.youtube.com/channel/UCdZAmYl6K6easFcF0Jq-boA
Our Official Website for more information-
http://www.hindigyan.com/
https://wn.com/नसों_के_खिंचने_से_दर्द_के_उपचार_(Nerves_Dard_Ke_Upchar)
नर्व के दर्द के उपचार - नसों के खिंचने से होने वाले दर्द के उपाय ! परभावित स्थान का अत्यधिक उपयोग न करें: जब आपकी नस में होने वाले दर्द की डायग्नोसिस हो जाए तो आपको अपनी देखभाल करना शुरू कर देना चाहिए |
मालिश करें: नस के होने वाले दर्द पर दबाव डालने से तनाव को मुक्त करने और दर्द कम करने में मदद मिल सकती है |
ध्यान दें- आप हमारे चैनल से जरूर जुड़े रहे। इस चैनल में हम आपको हेल्थ टिप्स इन हिंदी (Health tips in Hindi), घरेलू नुस्खे, सेहत बनाने के उपाय और स्वास्थ्य टिप्स बताएंगे।
इस चैनल की विडियो में आयुर्वेद (Ayurved) के रामबाण नुस्खे भी बताएंगे।
आप हमारे चैनल से जुड़े रहे।
Our official Youtube channel link-
https://www.youtube.com/channel/UCdZAmYl6K6easFcF0Jq-boA
Our Official Website for more information-
http://www.hindigyan.com/
- published: 28 Dec 2016
- views: 364027
7:09
The Synapse
In this video Paul Andersen explains how the synapse allows information to travel from one axon to the next. He starts by differentiating between electrical an...
In this video Paul Andersen explains how the synapse allows information to travel from one axon to the next. He starts by differentiating between electrical and chemical synapses. He then details the action of the chemical synapse whereby an incoming action potential triggers the opening of voltage-gate Ca2+ channels that trigger the release of neurotransmitters from vesicles into the synaptic cleft. These neurotransmitters dock with receptors and can send either excitatory or inhibitory messages onward. He also explains how long term potentiation can lead to memory formation.
Music Attribution
Intro
Title: I4dsong_loop_main.wav
Artist: CosmicD
Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/
Creative Commons Atribution License
Outro
Title: String Theory
Artist: Herman Jolly
http://sunsetvalley.bandcamp.com/track/string-theory
All of the images are licensed under creative commons and public domain licensing:
LadyofHats. (2007). English: Complete neuron cell diagram. Neurons (also known as neurones and nerve cells) are electrically excitable cells in the nervous system that process and transmit information. In vertebrate animals, neurons are the core components of the brain, spinal cord and peripheral nerves. Retrieved from https://commons.wikimedia.org/wiki/File:Complete_neuron_cell_diagram_en.svg
Tsukanov, K. (2012). English: Frog dissection during practical work at Faculty of Biology, Moscow State University. Retrieved from https://commons.wikimedia.org/wiki/File:Frog_dissection,_1.JPG
USA, J. G. Neuroimaging Department, National Intrepid Center of Excellence, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD 20889. (2010). English: FMRI scan during working memory tasks. Working memory tasks typically show activation in the bilateral and superior frontal cortex as well as in parts of the superior bilateral parietal cortex. The highlighted regions showed significantly different activation between an individual performing a 1-Back task versus a 2-Back task.(Graner J, Oakes TR, French LM and Riedy G 2013). Retrieved from https://commons.wikimedia.org/wiki/File:FMRI_scan_during_working_memory_tasks.jpg
https://wn.com/The_Synapse
In this video Paul Andersen explains how the synapse allows information to travel from one axon to the next. He starts by differentiating between electrical and chemical synapses. He then details the action of the chemical synapse whereby an incoming action potential triggers the opening of voltage-gate Ca2+ channels that trigger the release of neurotransmitters from vesicles into the synaptic cleft. These neurotransmitters dock with receptors and can send either excitatory or inhibitory messages onward. He also explains how long term potentiation can lead to memory formation.
Music Attribution
Intro
Title: I4dsong_loop_main.wav
Artist: CosmicD
Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/
Creative Commons Atribution License
Outro
Title: String Theory
Artist: Herman Jolly
http://sunsetvalley.bandcamp.com/track/string-theory
All of the images are licensed under creative commons and public domain licensing:
LadyofHats. (2007). English: Complete neuron cell diagram. Neurons (also known as neurones and nerve cells) are electrically excitable cells in the nervous system that process and transmit information. In vertebrate animals, neurons are the core components of the brain, spinal cord and peripheral nerves. Retrieved from https://commons.wikimedia.org/wiki/File:Complete_neuron_cell_diagram_en.svg
Tsukanov, K. (2012). English: Frog dissection during practical work at Faculty of Biology, Moscow State University. Retrieved from https://commons.wikimedia.org/wiki/File:Frog_dissection,_1.JPG
USA, J. G. Neuroimaging Department, National Intrepid Center of Excellence, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda, MD 20889. (2010). English: FMRI scan during working memory tasks. Working memory tasks typically show activation in the bilateral and superior frontal cortex as well as in parts of the superior bilateral parietal cortex. The highlighted regions showed significantly different activation between an individual performing a 1-Back task versus a 2-Back task.(Graner J, Oakes TR, French LM and Riedy G 2013). Retrieved from https://commons.wikimedia.org/wiki/File:FMRI_scan_during_working_memory_tasks.jpg
- published: 06 Feb 2017
- views: 563591
5:26
How To Improve Blood Circulation in Brain | Five Ways To Improve Blood Circulation To The Brain
How To Improve Blood Circulation in Brain | Five Ways To Improve Blood Circulation To The Brain
What happens if there happens to be a case where there is not e...
How To Improve Blood Circulation in Brain | Five Ways To Improve Blood Circulation To The Brain
What happens if there happens to be a case where there is not enough blood to reach the brain at one time? When the brain locally becomes anemic, the tissue of the brain gradually dies and the connection between the cells is lost. And the risk of stroke also increases ...
Actually it is easy to increase the amount of blood flowing in the brain in everyday life. By doing so, you can reduce the risk of serious diseases such as stroke, and even improve the brain functions such as memory and concentration !
Let's see five easy ways to increase blood flow to the brain.
1. Aerobic exercise.
2. Healthy meal.
3. Goodbye to cigarettes, obesity, stress.
4. Let's do brain training everyday.
5. Positive thinking.
Don't forget to subscribe
For more recipes and tips, subscribe to the channel!
Follow us on Twitter: https://twitter.com/nhealth64
Follow us on Tumblr: https://nhealth64.tumblr.com/
Follow us on Google Plus: https://plus.google.com/u/0/105904658669748534934
Disclaimer: The materials and the information contained on Natural Health channel are provided for general and educational purposes only and do not constitute any legal, medical or other professional advice on any subject matter. None of the information on our videos is a substitute for a diagnosis and treatment by your health professional. Always seek the advice of your physician or other qualified health provider prior to starting any new diet or treatment and with any questions you may have regarding a medical condition. If you have or suspect that you have a medical problem, promptly contact your health care provider.
_
Images licensed under CC:
www.pixabay.com
www.flickr.com
www.pexels.com
en.wikipedia.org
commons.wikimedia.org
www.publicdomainpictures.net
Some images downloaded from shutterstock.com.
https://wn.com/How_To_Improve_Blood_Circulation_In_Brain_|_Five_Ways_To_Improve_Blood_Circulation_To_The_Brain
How To Improve Blood Circulation in Brain | Five Ways To Improve Blood Circulation To The Brain
What happens if there happens to be a case where there is not enough blood to reach the brain at one time? When the brain locally becomes anemic, the tissue of the brain gradually dies and the connection between the cells is lost. And the risk of stroke also increases ...
Actually it is easy to increase the amount of blood flowing in the brain in everyday life. By doing so, you can reduce the risk of serious diseases such as stroke, and even improve the brain functions such as memory and concentration !
Let's see five easy ways to increase blood flow to the brain.
1. Aerobic exercise.
2. Healthy meal.
3. Goodbye to cigarettes, obesity, stress.
4. Let's do brain training everyday.
5. Positive thinking.
Don't forget to subscribe
For more recipes and tips, subscribe to the channel!
Follow us on Twitter: https://twitter.com/nhealth64
Follow us on Tumblr: https://nhealth64.tumblr.com/
Follow us on Google Plus: https://plus.google.com/u/0/105904658669748534934
Disclaimer: The materials and the information contained on Natural Health channel are provided for general and educational purposes only and do not constitute any legal, medical or other professional advice on any subject matter. None of the information on our videos is a substitute for a diagnosis and treatment by your health professional. Always seek the advice of your physician or other qualified health provider prior to starting any new diet or treatment and with any questions you may have regarding a medical condition. If you have or suspect that you have a medical problem, promptly contact your health care provider.
_
Images licensed under CC:
www.pixabay.com
www.flickr.com
www.pexels.com
en.wikipedia.org
commons.wikimedia.org
www.publicdomainpictures.net
Some images downloaded from shutterstock.com.
- published: 29 Sep 2017
- views: 1313620
10:25
Endocrine System, Part 1 - Glands & Hormones: Crash Course Anatomy & Physiology #23
Hank begins teaching you about your endocrine system by explaining how it uses glands to produce hormones. These hormones are either amino-acid based and water ...
Hank begins teaching you about your endocrine system by explaining how it uses glands to produce hormones. These hormones are either amino-acid based and water soluble, or steroidal and lipid-soluble, and may target many types of cells or just turn on specific ones. He will also touch on hormone cascades, and how the HPA axis affects your stress response.
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ
Chapters:
Introduction: What are Hormones? 00:00
Endocrine System 1:48
Glands & Organs of the Endocrine System 2:42
Hormones Trigger Reactions in Target Cells 3:33
Water Soluble vs Lipid Soluble Hormones 4:16
How the Pancreas Regulates Blood Sugar 5:09
Hormone Cascades 6:05
Hypothalamic-Pituitary-Adrenal (HPA) Axis 6:30
Review 9:15
Credits 9:48
***
Crash Course is now on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
Mark Brouwer, Jan Schmid, Steve Marshall, Anna-Ester Volozh, Sandra Aft, Brad Wardell, Christian Ludvigsen, Robert Kunz, Jason, A Saslow, Jacob Ash, Jeffrey Thompson, Jessica Simmons, James Craver, Simun Niclasen, SR Foxley, Roger C. Rocha, Nevin, Spoljaric, Eric Knight, Elliot Beter, Jessica Wode
***SUBBABLE MESSAGES***
TO: Laura Hewett
FROM: Amy Paez
Greetings from the other side of the world! DFTBA
--
TO: Wesley
FROM: G
Distance is created by the Desert Otherworld, therefore we shall not be destroyed.
***SUPPORTER THANK YOU!***
Thank you so much to all of our awesome supporters for their contributions to help make Crash Course possible and freely available for everyone forever:
Mickey Maloney, Dan Smalley, Stephen DeCubellis, Vanessa Benavent, Andrew Galante, LankySam!, David Costello, Vanessa Benavent, Kenzo Yasuda, Tessa White
--
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Tumblr - http://thecrashcourse.tumblr.com
Support Crash Course on Patreon: http://patreon.com/crashcourse
CC Kids: http://www.youtube.com/crashcoursekids
https://wn.com/Endocrine_System,_Part_1_Glands_Hormones_Crash_Course_Anatomy_Physiology_23
Hank begins teaching you about your endocrine system by explaining how it uses glands to produce hormones. These hormones are either amino-acid based and water soluble, or steroidal and lipid-soluble, and may target many types of cells or just turn on specific ones. He will also touch on hormone cascades, and how the HPA axis affects your stress response.
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ
Chapters:
Introduction: What are Hormones? 00:00
Endocrine System 1:48
Glands & Organs of the Endocrine System 2:42
Hormones Trigger Reactions in Target Cells 3:33
Water Soluble vs Lipid Soluble Hormones 4:16
How the Pancreas Regulates Blood Sugar 5:09
Hormone Cascades 6:05
Hypothalamic-Pituitary-Adrenal (HPA) Axis 6:30
Review 9:15
Credits 9:48
***
Crash Course is now on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
Mark Brouwer, Jan Schmid, Steve Marshall, Anna-Ester Volozh, Sandra Aft, Brad Wardell, Christian Ludvigsen, Robert Kunz, Jason, A Saslow, Jacob Ash, Jeffrey Thompson, Jessica Simmons, James Craver, Simun Niclasen, SR Foxley, Roger C. Rocha, Nevin, Spoljaric, Eric Knight, Elliot Beter, Jessica Wode
***SUBBABLE MESSAGES***
TO: Laura Hewett
FROM: Amy Paez
Greetings from the other side of the world! DFTBA
--
TO: Wesley
FROM: G
Distance is created by the Desert Otherworld, therefore we shall not be destroyed.
***SUPPORTER THANK YOU!***
Thank you so much to all of our awesome supporters for their contributions to help make Crash Course possible and freely available for everyone forever:
Mickey Maloney, Dan Smalley, Stephen DeCubellis, Vanessa Benavent, Andrew Galante, LankySam!, David Costello, Vanessa Benavent, Kenzo Yasuda, Tessa White
--
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Tumblr - http://thecrashcourse.tumblr.com
Support Crash Course on Patreon: http://patreon.com/crashcourse
CC Kids: http://www.youtube.com/crashcoursekids
- published: 22 Jun 2015
- views: 6342537
4:09
Neurons or nerve cells - Structure function and types of neurons | Human Anatomy | 3D Biology
Neurons or nerve cells - Structure and function | Human Anatomy | Biology
The nervous system is an essential part of the human body that helps in the transmis...
Neurons or nerve cells - Structure and function | Human Anatomy | Biology
The nervous system is an essential part of the human body that helps in the transmission of signals across the various parts of the body, that is, it releases messages back and forth from the brain to the different parts of the body, and also helps in the coordination of voluntary and involuntary actions of the body.
At the cellular level, the nervous system consists of a special type of cell, called the neuron, also known as a "nerve cell". The neurons connect to each other using a synapse (which is a structure that acts like a pathway connection that transmits the signals to the other cells) to form the nervous system.
Neurons have special structures that allow them to send signals rapidly and precisely to other cells by providing a common pathway for the passage of these electrochemical nerve impulses.
Neurons are responsive in nature, by which we imply that Neurons response to feelings and communicate the presence of that feeling to the central nervous system which in-turn is processed and is sent to the other parts of the body for action.
The neurons are the basic constituents of the brain, vertebral spinal cord, the ventral nerve cord and the peripheral ganglia( which is a mass of nerve cell bodies). Nervous system
Neurons can be categorized into three types: sensory neurons, motor neurons and inter neurons.
Sensory neurons allow us to receive information from the outside world through our senses. The sensory neurons evoke the sensation of touch, pain, vision, hearing and taste. These are usually present in the sensory organs, like the eyes, inner ear and so on, which send these signals to the spinal cord and the brain.
Inter neurons communicate and connect with each other, and represent the majority of the neurons in our brain. They allow us to think see and perceive our surroundings.
Motor neurons are neurons that receive impulses from the spinal cord or the brain and send them to the muscles causing muscular contraction, and these also affect the gland secretion.
A typical neuron has a "soma" in its centre, which contains the nucleus of the cell. And hence this is where the protein synthesis occurs.
The neural function is based on the synaptic signalling (the pathway that helps in the transmission of signals) process, which is partly electrical and partly chemical. The electrical aspect depends on properties of the neuron's membrane. Every neuron is surrounded by a plasma membrane, which is a bilayer of lipid molecules that comprise of various protein structures. A lipid bilayer is a powerful electrical insulator, but in neurons, many of the protein structures embedded in the membrane are electrically active.
Cell division cannot take place in neurons as they lack one of the two cylindrical cellular structures that aid in cell division. This is consistent with a simple cell division nature of the cell.
Dendrites are extensions of the cell with many branches, whose structure can be called as a "dendritic tree" . They project from the cell body and are sometimes referred to as fibres. They are also called as afferent processes because they transmit impulses to the neuron cell body .
There is only one axon that projects from each cell body, which is a finer cable-like projector. It is usually elongated and it carries impulses away from the cell body, that is, away from the 'soma'. It is an efferent process.
many axons are surrounded by a segmented white fatty substance called myelin sheaths.
https://wn.com/Neurons_Or_Nerve_Cells_Structure_Function_And_Types_Of_Neurons_|_Human_Anatomy_|_3D_Biology
Neurons or nerve cells - Structure and function | Human Anatomy | Biology
The nervous system is an essential part of the human body that helps in the transmission of signals across the various parts of the body, that is, it releases messages back and forth from the brain to the different parts of the body, and also helps in the coordination of voluntary and involuntary actions of the body.
At the cellular level, the nervous system consists of a special type of cell, called the neuron, also known as a "nerve cell". The neurons connect to each other using a synapse (which is a structure that acts like a pathway connection that transmits the signals to the other cells) to form the nervous system.
Neurons have special structures that allow them to send signals rapidly and precisely to other cells by providing a common pathway for the passage of these electrochemical nerve impulses.
Neurons are responsive in nature, by which we imply that Neurons response to feelings and communicate the presence of that feeling to the central nervous system which in-turn is processed and is sent to the other parts of the body for action.
The neurons are the basic constituents of the brain, vertebral spinal cord, the ventral nerve cord and the peripheral ganglia( which is a mass of nerve cell bodies). Nervous system
Neurons can be categorized into three types: sensory neurons, motor neurons and inter neurons.
Sensory neurons allow us to receive information from the outside world through our senses. The sensory neurons evoke the sensation of touch, pain, vision, hearing and taste. These are usually present in the sensory organs, like the eyes, inner ear and so on, which send these signals to the spinal cord and the brain.
Inter neurons communicate and connect with each other, and represent the majority of the neurons in our brain. They allow us to think see and perceive our surroundings.
Motor neurons are neurons that receive impulses from the spinal cord or the brain and send them to the muscles causing muscular contraction, and these also affect the gland secretion.
A typical neuron has a "soma" in its centre, which contains the nucleus of the cell. And hence this is where the protein synthesis occurs.
The neural function is based on the synaptic signalling (the pathway that helps in the transmission of signals) process, which is partly electrical and partly chemical. The electrical aspect depends on properties of the neuron's membrane. Every neuron is surrounded by a plasma membrane, which is a bilayer of lipid molecules that comprise of various protein structures. A lipid bilayer is a powerful electrical insulator, but in neurons, many of the protein structures embedded in the membrane are electrically active.
Cell division cannot take place in neurons as they lack one of the two cylindrical cellular structures that aid in cell division. This is consistent with a simple cell division nature of the cell.
Dendrites are extensions of the cell with many branches, whose structure can be called as a "dendritic tree" . They project from the cell body and are sometimes referred to as fibres. They are also called as afferent processes because they transmit impulses to the neuron cell body .
There is only one axon that projects from each cell body, which is a finer cable-like projector. It is usually elongated and it carries impulses away from the cell body, that is, away from the 'soma'. It is an efferent process.
many axons are surrounded by a segmented white fatty substance called myelin sheaths.
- published: 27 Apr 2013
- views: 1647911
5:00
How do nerves work? - Elliot Krane
View full lesson: http://ed.ted.com/lessons/how-do-nerves-work
At any moment, there is an electrical storm coursing through your body. Discover how chemical r...
View full lesson: http://ed.ted.com/lessons/how-do-nerves-work
At any moment, there is an electrical storm coursing through your body. Discover how chemical reactions create an electric current that drives our responses to everything from hot pans to a mother's caress.
Lesson by Elliot Krane, animation by TED-Ed.
https://wn.com/How_Do_Nerves_Work_Elliot_Krane
View full lesson: http://ed.ted.com/lessons/how-do-nerves-work
At any moment, there is an electrical storm coursing through your body. Discover how chemical reactions create an electric current that drives our responses to everything from hot pans to a mother's caress.
Lesson by Elliot Krane, animation by TED-Ed.
- published: 09 Aug 2012
- views: 429805