- published: 15 May 2014
- views: 133677
The esophagus (American English) or oesophagus (British English), commonly known as the foodpipe or gullet, is an organ in vertebrates which consists of a fibromuscular tube through which food passes, aided by peristaltic contractions, from the pharynx to the stomach. In humans, the esophagus is usually 18–25 centimeters (cm) long. During swallowing the epiglottis tilts backwards to prevent food from going down the larynx. The esophagus travels behind the trachea and heart, passes through the diaphragm and empties into the cardia of the stomach. The word esophagus derives from the Greek word oisophagos, which means "to carry to eat."
The wall of the esophagus from the lumen outwards consists of mucosa, submucosa (connective tissue), layers of muscle fibers between layers of fibrous tissue, and an outer layer of connective tissue. The mucosa is a stratified squamous epithelium (multiple layers of cells topped by a layer of flat cells) which contrasts to the single layer of columnar cells of the stomach. The transition between these two type of epithelium is visible as a zig-zag line. Most of the muscle is smooth muscle although striated muscle predominates in its upper two thirds. It has two muscular rings or sphincters in its wall, one at the top and one at the bottom. The lower sphincter helps to prevent reflux of acidic stomach content. The esophagus has a rich blood supply and vascular drainage. Its smooth muscle is innervated by involuntary nerves (sympathetic nerves via the sympathetic trunk and parasympathetic nerves via the vagus nerve) and in addition voluntary nerves (lower motor neurons) are carried in the vagus nerve to innervate its striated muscle.
Khan Academy is a non-profit educational organization created in 2006 by educator Salman Khan with the aim of providing a free, world-class education for anyone, anywhere. The organization produces short lectures in the form of YouTube videos. In addition to micro lectures, the organization's website features practice exercises and tools for educators. All resources are available for free to anyone around the world. The main language of the website is English, but the content is also available in other languages.
The founder of the organization, Salman Khan, was born in New Orleans, Louisiana, United States to immigrant parents from Bangladesh and India. After earning three degrees from the Massachusetts Institute of Technology (a BS in mathematics, a BS in electrical engineering and computer science, and an MEng in electrical engineering and computer science), he pursued an MBA from Harvard Business School.
In late 2004, Khan began tutoring his cousin Nadia who needed help with math using Yahoo!'s Doodle notepad.When other relatives and friends sought similar help, he decided that it would be more practical to distribute the tutorials on YouTube. The videos' popularity and the testimonials of appreciative students prompted Khan to quit his job in finance as a hedge fund analyst at Connective Capital Management in 2009, and focus on the tutorials (then released under the moniker "Khan Academy") full-time.
Barrett's esophagus (British English: Barrett's oesophagus), sometimes called Barrett syndrome, Barrett esophagus, or columnar epithelium lined lower oesophagus (CELLO), refers to an abnormal change (metaplasia) in the cells of the lower portion of the esophagus. It is characterized by the replacement of the normal stratified squamous epithelium lining of the esophagus by simple columnar epithelium with goblet cells (which are usually found lower in the gastrointestinal tract). The medical significance of Barrett's esophagus is its strong association (about 0.5% per patient-year) with esophageal adenocarcinoma, a very often deadly cancer, because of which it is considered to be a premalignant condition.
Mayo Clinic is a nonprofit medical practice and medical research group based in Rochester, Minnesota. It is the first and largest integrated nonprofit medical group practice in the world, employing more than 3,800 physicians and scientists and 50,900 allied health staff. The practice specializes in treating difficult cases through tertiary care. It spends over $500 million a year on research.
Dr. William Worrall Mayo settled his family in Rochester in 1864 and opened a medical practice that evolved under his sons into Mayo Clinic. Mayo Clinic is widely regarded as one of the world's greatest hospitals and ranked No. 1 on the 2014–2015 U.S. News & World Report List of "Best Hospitals", maintaining a position near the top for more than 20 years. It has been on the list of America's "100 Best Companies to Work For" published by Fortune magazine for eight consecutive years. It continued to achieve this ranking through 2015.
In addition to their flagship hospital in Rochester, the Mayo Clinic has major campuses in Arizona and Florida. The Mayo Clinic Health System also operates affiliated facilities throughout Minnesota, Wisconsin, and Iowa.
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Created by Raja Narayan. Watch the next lesson: https://www.khanacademy.org/test-prep/nclex-rn/rn-gastrointestinal-system/rn-the-gastrointestinal-system/v/stomach?utm_source=YT&utm;_medium=Desc&utm;_campaign=Nclex-rn Missed the previous lesson? https://www.khanacademy.org/test-prep/nclex-rn/rn-gastrointestinal-system/rn-the-gastrointestinal-system/v/teeth?utm_source=YT&utm;_medium=Desc&utm;_campaign=Nclex-rn NCLEX-RN on Khan Academy: A collection of questions from content covered on the NCLEX-RN. These questions are available under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License (available at http://creativecommons.org/licenses/by-nc-sa/3.0/us/). About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning ...
Find more videos at: https://www.kenhub.com Subscribe to our YouTube channel: http://bit.ly/VOEG2I The esophagus is a long fibromuscular tube that runs in the thoracic cavity and connects the pharynx with the stomach. For more Human Anatomy video tutorials, interactive quizzes, articles and an atlas of Human Anatomy, go to https://www.kenhub.com ! Or subscribe to our Youtube channel: http://bit.ly/VOEG2I Like us on facebook: https://www.facebook.com/kenhubcom Follow us on twitter: https://twitter.com/kenHub_com Articles related to this video ============================= Esophagus https://www.kenhub.com/en/library/anatomy/esophagus Atlas related to this video ============================= Oesophagus https://www.kenhub.com/en/atlas/esophagus
See much more honest health information at: http://www.rehealthify.com/ Rehealthify offers reliable, up-to-date health information, anytime, anywhere, for free. -- video script below -- The esophagus is the tube that carries food, liquids and saliva from your mouth to the stomach. You may not be aware of your esophagus until you swallow something too large, too hot or too cold. You may also become aware of it when something is wrong. The most common problem with the esophagus is gastroesophageal reflux disease (GERD). It happens when a band of muscle at the end of your esophagus does not close properly. This allows stomach contents to leak back, or reflux, into the esophagus and irritate it. Over time, GERD can cause damage to the esophagus. Other problems include heartburn and cancer. ...
The Human Body for Kids/Learn about the Human Body for Children/Esophagus Learn about your esophagus with this amazing and awesome animated music video and catchy song!!!! And don't forget to sing along! Facebook: https://www.facebook.com/kidslearningtube Subscribe: http://www.youtube.com/c/kidslearningtube Tweet Us: https://twitter.com/learningtube Instagram: https://instagram.com/kidslearningtube Add us on Google+: https://plus.google.com/+KidsLearning... Music: Copyright 2016 Kids Learning Tube Video: Copyright 2016 Kids Learning Tube LYRICS: Esophagus I am your esophagus Esophagus Attached to the back of your trachea Esophagus The digestive systems muscular tube Esophagus I bring the food down to the stomach in you I live in front of your spinal column I’m right behind the trac...
EDIT: I said a jar of honey that size might last 10 days in the video, but 7 days may be more accurate. EDIT 2: Thank you for 10k views! I hope you all are finding life more bearable due to this video. Here is a remedy I have used to heal my esophagus. I will not claim this can 100% cure you, but it should be able to bring some relief and comfort to your daily life. If this video or my blog helps you or your loved ones, feel free to leave a tip. (Reactivated) https://www.gofundme.com/supplementhealing Check out my blog where I use myself as a lab rat to test different supplements to heal ailments and illnesses. Updated blog link - http://supplementalhealing.com/ Update: New blog for non-health thoughts and ideas. http://boredguythoughts.com/ Go here to see the MGO amounts for e...
http://www.FauquierENT.net - This video demonstrates how the esophagus can be examined without any sedation. Called trans-nasal esophagoscopy (TNE), this exam can be performed in the office using only topical anesthesia. A very thin disposable sheath (like a condom) is used to protect endoscope and maintain sterility between patient use. The scope used in this video is made by Vision Sciences.
Over time, Gastroesophageal Reflux Disease, or GERD, can lead to Barretts esophagus, dysplasia or even esophagus cancer (adenocarcinoma.) This video shows how an esophagectomy removes abnormal or cancerous cells by removing part of the esophagus, the top part of the stomach and nearby lymph nodes. It also discusses some of the risks and possible complications of this operation. Mayo Clinic has a very large team with an international reputation for its skill in diagnosing and treating reflux, Barretts esophagus and esophagus cancer. For more information, go to the Mayo Clinic website, http://www.mayoclinic.org/barretts-esophagus/
With Gastroesophageal Reflux Disease, or GERD, acid splashes up into the esophagus repeatedly, which can damage the lining of the esophagus. In a process called metaplasia, damaged cells turn into a type of cell more like tissue found in the intestines. When this occurs in the esophagus, the condition is called Barretts esophagus. This video explains short segment Barretts esophagus and long segment Barretts esophagus. Mayo Clinic has a very large team with an international reputation for its skill in diagnosing and treating reflux, Barretts esophagus and esophagus cancer. For more information, go to the Mayo Clinic website, http://www.mayoclinic.org/barretts-esophagus/
[Daniels, Bagchus / Daniels, Bagchus]
Streams of ancient life
flowing down below
visions of the past
enter your mind
the past goes by
as you sleep at night
Journey of forgotten souls
through the ancient night
walking through
as you scream temfied
those who once were
cry out to you
the past goes by