Bayliss effect

to get instant updates about 'Bayliss Effect' on your MyPage. Meet other similar minded people. Its Free!

X 

All Updates


Description:
A special manifestation of the myogenic tone is the myogenic response (also called the Bayliss effect) in the vasculature. The Bayliss effect in vascular smooth muscles cells is a response to stretch. This is especially relevant in arterioles of the body. When blood pressure is increased in the blood vessels and the blood vessels distend, they react with a constriction; this is the Bayliss effect. Stretch of the muscle membrane opens a stretch-activated ion channel. The cells then become depolarized and this results in a Ca<sup>2+</sup> signal and triggers muscle contraction. It is important to understand that no action potential is necessary here; the level of entered calcium affects the level of contraction proportionally and causes tonic contraction. The contracted state of the smooth muscle depends on the grade of stretch and plays an important part in the regulation of blood flow.

Increased contraction increases the total peripheral resistanse (TPR) and this further increases the mean arterial pressure (MAP). This is explained by the following equation:<math>MAP = CO * TPR </math>

This effect is independent of nervous mechanisms and that is how we differentiate it from the myogenic tone, which is controlled by the sympathetic nervous system.

The overall effect of the myogenic response (Bayliss effect) is to decrease blood flow across a vessel after an increase in blood pressure.

History

The Bayliss effect (or Bayliss myogenic response) was...
Read More

No feeds found

All
Posting your question. Please wait!...


No updates available.
No messages found
Suggested Pages
Tell your friends >
about this page
 Create a new Page
for companies, colleges, celebrities or anything you like.Get updates on MyPage.
Create a new Page
 Find your friends
  Find friends on MyPage from