Dictionary » A » Aortic valve

Aortic valve

Definition

noun

(anatomy) A semilunar valve that lies in between the left ventricle and the aorta, and prevents the backward movement of blood during ventricular systole


Supplement

Aortic valves are heart valves located at the bases of the aorta. Each of them lies in between the left ventricle and the aorta. Together with pulmonary valve, the aortic valves make up the semilunar valves of the heart.

In humans, the aortic valve generally has three cusps or leaflets: the left cusp, the right cusp, and the posterior cusp. In few instances, the aortic valve may have only two. The cusps of the aortic valve regulate the opening and the closure of the valve. When open, the blood from the left ventricle flows into the aorta. When it closes, the blood is prevented from going back to the left ventricle. The valve opens when the pressure in the left ventricle rises during ventricular systole. It closes when the pressure drops rapidly at the end of the ventricular systole.


Compare:

See also:

Related term(s):


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Opening of the coronary artery & larynx

... --- 1. Why is the opening of the coronary artery behind the flap of the aortic semilunar valve? This was a question on a test and I received an X for this question. On the test, I ...

See entire post
by vertciel
Sat May 31, 2008 12:04 am
 
Forum: Human Biology
Topic: Opening of the coronary artery & larynx
Replies: 1
Views: 6248

Sequence of events in heart

... "used blood" from the body. Blood will be pushed through the tricuspid valve to the 2. Right Ventricle, the chamber which will pump to the lungs ... As it pumps, the pressure will close the mitral valve and open the aortic valve, with blood passing through to the 7. Aorta, where it will be ...

See entire post
by biostudent84
Thu Nov 10, 2005 5:56 pm
 
Forum: Human Biology
Topic: Sequence of events in heart
Replies: 4
Views: 5080


This page was last modified 07:03, 15 February 2015. This page has been accessed 2,948 times. 
What links here | Related changes | Permanent link