The Cardiovascular system - The valves of the heart - the Atrioventricular valves Flashcards
1
Q
What is the first valve on the right side of the heart?
How may cusps does it have, what are these cusps?
A
Tricuspid valves
3 cusps, anterior, septal and posterior
2
Q
What is the first valve on the left side of the heart?
How many cusps does it have, what are these cusps?
A
Mitral valve
2 cusps, anterior and posterior cusps
3
Q
What attach to the free edges of the mitral and tricuspid valves?
What are they attached to and where are these found?
A
Chordae tenedeae
Papillary muscles, located on the interior surfaces of the ventricles
4
Q
When do papillary muscles contract?
A
During ventricular systole to prevent prolapse of the valve leaflets into the atria
