World Library  
Flag as Inappropriate
Email this Article

Chest wall

Article Id: WHEBN0005888079
Reproduction Date:

Title: Chest wall  
Author: World Heritage Encyclopedia
Language: English
Subject: Breast, Areola, Breast augmentation, Breast reduction, Lactiferous duct, Breast implant, Mastopexy, Lobe (anatomy)
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Chest wall

Thoracic wall
Body cavities
A transverse section of the thorax, showing the contents of the middle and the posterior mediastinum.

Brief Explanation

The thoracic wall (or chest wall) is the boundary of the thoracic cavity.

The bony portion is known as the thoracic cage. However, the wall also includes muscle, skin, and fascia.

Relation to Apnea

When not breathing for long and dangerous periods of time in cold water, your body undergoes great temporary changes to try and prevent death. It achieves this through the activation of the Mammalian diving reflex, which has 3 main properties. Other than Bradycardia and Peripheral vasoconstriction, there is a blood shift which occurs only during very deep dives that affects the thoracic cavity (a chamber of the body protected by the thoracic wall.) When this happens, organ and circulatory walls allow plasma/water to pass freely throughout the thoracic cavity, so its pressure stays constant and the organs aren't crushed. In this stage, the lungs' alveoli fill up with blood plasma, which is reabsorbed when the organism leaves the pressurized environment. This stage of the diving reflex has been observed in humans (such as world champion freediver Martin Štěpánek) during extremely deep (over 90 metres or 300 ft) free dives.

External links

  • Medical Subject Headings (MeSH)
  • 18:lo-0000
  • eMedicine Dictionary


This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.