GENERAL ANATOMY
ANATOMY OF THE HEART
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Regulates the direction of the flow of blood through the heart
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Regulates the amount of oxygen bound to hemoglobin
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Regulates heart rate
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Directs the progression of the cardiac impulse from the SA node throughout the His-Purkinjae system
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Detailed explanation-1: -Separates the left ventricle from the aorta. Opens to allow blood to leave the heart from the left ventricle through the aorta and the body. Prevents the backflow of blood from the aorta to the left ventricle.
Detailed explanation-2: -The valves prevent the backward flow of blood. These valves are actual flaps that are located on each end of the two ventricles (lower chambers of the heart). They act as one-way inlets of blood on one side of a ventricle and one-way outlets of blood on the other side of a ventricle.
Detailed explanation-3: -The valves open and shut in time with the pumping action of your heart’s chambers. The opening and closing involve a set of flaps called cusps or leaflets. The cusps open to allow blood to flow out of a chamber and close to allow the chamber to refill with blood.
Detailed explanation-4: -Your heart contains four valves that open and close to control the flow of blood through it.
Detailed explanation-5: -The tricuspid valve regulates blood flow between the right atrium and right ventricle. The pulmonary valve controls blood flow from the right ventricle into the pulmonary arteries, which carry blood to your lungs to pick up oxygen.