Login

Join for Free!
118315 members


What is the role of Smooth Muscle in Aorta?

Human Anatomy, Physiology, and Medicine. Anything human!

Moderator: BioTeam

What is the role of Smooth Muscle in Aorta?

Postby biophillic » Wed Oct 24, 2007 2:40 pm

:?: What is the Role of Smooth Muscles in the Aorta?

From what i know the smooth muscles are found in the Tunica Media of the Aorta (and also almost all blood vessels except the capillaries). They alternate with the Elastic Fibers.

I know that the role of Elastic fibers is to allow the Aorta (or Arteries) to stretch during high pressure due to the pumping action of the heart and then recoils pushing the blood onwards, but i'm not sure about the Smooth Muscles.

One of its functions that i know is that the Smooth Muscles help control the flow of blood towards a part of the body. For example during exercise, the smooth muscles in the arteries carrying blood to the intestines shall contract, and the smooth muscles in the arteries carrying blood to the muscles shall relax allowing more blood to be delivered to the muscles.

And just why is there Smooth Muscles in the Aorta?What is its role in the aorta? i'd really appreciate for an explanation... thanks
biophillic
Garter
Garter
 
Posts: 2
Joined: Sat Aug 25, 2007 9:54 am

Postby mith » Wed Oct 24, 2007 8:19 pm

Probably the same reason its in the other arteries, blood pressure control.
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr
User avatar
mith
Inland Taipan
Inland Taipan
 
Posts: 5345
Joined: Thu Jan 20, 2005 8:14 pm
Location: Nashville, TN

Postby Darby » Fri Oct 26, 2007 2:47 pm

It's most likely giving a secondary push as it rebounds (that's definitely what happens in aortic arches, so it makes sense in regular arteries).
Darby
Viper
Viper
 
Posts: 1262
Joined: Thu Mar 02, 2006 5:29 pm
Location: New York, USA


Postby redredwine » Sat Oct 27, 2007 8:53 pm

hold it together, elasticity, auto regulation.

mostly structural.
redredwine
Garter
Garter
 
Posts: 7
Joined: Sat Oct 27, 2007 8:44 pm


Return to Human Biology

Who is online

Users browsing this forum: No registered users and 2 guests