- published: 15 Feb 2016
- views: 657
Homeostasis or homoeostasis (homeo- + -stasis) is the property of a system in which variables are regulated so that internal conditions remain stable and relatively constant. Examples of homeostasis include the regulation of temperature and the balance between acidity and alkalinity (pH). Human homeostasis is the process that maintains the stability of the human body's internal environment in response to changes in external conditions.
The concept was described by French physiologist Claude Bernard in 1865 and the word was coined by Walter Bradford Cannon in 1926. Although the term was originally used to refer to processes within living organisms, it is frequently applied to automatic control systems such as thermostats. Homeostasis requires a sensor to detect changes in the condition to be regulated, a control center located in the hypothalamus, and an effector mechanism that can vary that condition, and a negative feedback connection between the two.
All living organisms depend on maintaining a complex set of interacting metabolic chemical reactions. From the simplest unicellular organisms to the most complex plants and animals, internal processes operate to keep the conditions within tight limits to allow these reactions to proceed. Homeostatic processes act at the level of the cell, the tissue, and the organ, as well as for the organism as a whole.
Homeostasis in the Human Body [3D Animation] ...................................................................... Please like, comment, share and subscribe
This BBC Bitesize video simply explains Homeostasis in Humans.
Learn about homeostasis and why the cell membrane is king for this process. Music used with permission from Adrian Holovaty (www.youtube.com/adrianholovaty). Check out our FREE video handouts on www.amoebasisters.com! We always welcome comments, but we do have our comments on "approval" only. Criticism is fine, but this is an education channel. No bad language or discriminatory comments allowed. In other words, don't put anything here you wouldn't tell grandma. Visit our Website: www.AmoebaSisters.weebly.com YouTube: www.youtube.com/user/AmoebaSisters
Homeostasis lesson for human physiology Table of Contents: 00:00 - WinnacunnetAnatomy and Physiology 01:23 - Homeostasis 03:00 -
Introduction To Anatomy Physiology: Homeostasis & Health (01:05) Homeostasis, Positive Feedback, and Negative Feedback is a concept that all Anatomy and Physiology students need to grasp early on in their studies (Anatomy & Physiology Lectures). We take a look at this important topic. We also define the term health. Lesson 5 in our Introduction to Anatomy and Physiology series, part of our Anatomy and Physiology lecture series. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Mr. Ford Class is one of the leading educational YouTube channels for anatomy and physiology, microbiology and computer training videos. Scott Ford, M. Ed. is an award-winning teacher with over 16 years in the classroom. His videos are used by public schools, private schools, colleges and trade schools around the world. All of h...
Paul Andersen reviews the major concepts within the fourth unit of the new AP Biology framework. He begins by differentiating between negative and positive feedback loops. He explains how a stable internal environment is maintained through behavior and physiology. He details thermoregulation, osmoregulation and blood glucose regulation. He also describes how natural selection has shaped behavior. Intro Music Atribution Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License
If you would like to get hold of my books, one on Physiology and another on Pathophysiology, check out my web site campbellteaching.co.uk Funds from selling books helps to finance distribution of resources to students in poorer countries. Homeostasis Introduction Homeo - same Stasis -- standing still Dynamic equilibrium Disruptors Detectors Control system Effectors Body made of billions of cells All dependent on on-going complex biochemistry Depends on a finely tuned environment Constant energy production, nutrients, vitamins, amino acids, glucose, oxygen New nutrients supplies, just right amounts. Removal of waste products or cells will die. Selective removal of many components. Examples Fluid and electrolytes Body temperature Blood pressure Blood oxygenation Red cell volumes...
Homeostasis Medio interno Retroalimentacion positiva y negativa ejemplos AYUDAME EN PATREON Y DESCARGA MIS DIAPOSITIVAS: https://www.patreon.com/AngeloCastroEstrada Suscribete a mi humilde canal de apoyo a otros estudiantes y así podrás ver las actualizaciones: FACEBOOK: https://www.facebook.com/JuntosSomosMedicina TEMAS: MEDIO INTERNO Y HOMEOSTASIS: Sistema de regulación de las funciones corporales .Mecanismos de retroalimentación negativa y positiva Liquidos corporales .Liquido extracelular e intracelular COMPARTAN EL VIDEO, QUE ESTA INFORMACION ESTA HECHA PARA COMPARTIR CON TODOS LOS QUE LA NECESITAN!
An overview of a very important concept in Human Anatomy: Homeostasis. This video also introduces negative and positive feedback mechanisms.