5 Questions
What is the function of the atrioventricular valves in the heart?
Control blood flow between the atria and ventricles
How many leaflets does the tricuspid valve have?
Three
What is the function of chordae tendineae in relation to the heart valves?
Prevent valve prolapse into the atria
Which type of valve is the left atrioventricular valve in the heart?
Bicuspid valve
What role do papillary muscles play in relation to heart valves?
Open the valves and allow blood flow between chambers
Study Notes
Atrioventricular Valves in the Heart
- Atrioventricular valves prevent backflow of blood from the ventricles to the atria.
- They ensure blood flows in one direction, from the atria to the ventricles.
Tricuspid Valve
- The tricuspid valve has three leaflets.
Chordae Tendineae
- Chordae tendineae are thin, fibrous cords that connect the heart valves to the ventricular walls.
- They prevent the valves from bulging too far into the ventricles and prolapsing.
Left Atrioventricular Valve
- The left atrioventricular valve is a bicuspid valve, also known as the mitral valve.
Papillary Muscles
- Papillary muscles are small, finger-like muscles that project from the ventricular walls.
- They contract to pull the chordae tendineae, which in turn, pull the valve cusps together to prevent regurgitation of blood.
Explore the anatomy of heart valves in this quiz, focusing on atrioventricular valves, semilunar valves, and their structure and functions. Learn about the tricuspid and mitral valves, as well as their connection to papillary muscles in the ventricles.
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