Located between each ventricle and the major artery that leads blood out of the heart. These valves are closed during heart relaxation and open when ventricles contract making the dub sound

BLOOD VESSELS

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Located between each ventricle and the major artery that leads blood out of the heart. These valves are closed during heart relaxation and open when ventricles contract making the ‘dub’ sound

A	Atrioventricular valves
B	Semilunar valves
C	Either A or B
D	None of the above

Explanation:

Detailed explanation-1: -The pulmonary valve is the heart valve that lies in between the right ventricle and the pulmonary artery. Similar to aortic valves, the pulmonary valve has three cusps. It also opens in ventricular systole and closes at the end of ventricular systole. The closure of these two valves causes the second heart sound.

Detailed explanation-2: -semilunar valve, either of two pocketlike half-moon-shaped structures located between the left ventricle and the aorta (aortic valve) and between the right ventricle and the pulmonary artery (pulmonary valve) of the heart.

Detailed explanation-3: -The semilunar valves open when the ventricular muscle contracts and generates blood pressure within the ventricle higher than within the arterial tree. When the heart muscle relaxes the diastole phase begins again.

There is 1 question to complete.

NEET PG DENTAL EXAM

HISTOLOGY

BLOOD VESSELS