SaraNextGen.Com

The first heart sound ‘Lubb’ occurs in which phase of the cardiac cycle?

a)

Isometric relaxation

b)

Atrial diastole

c)

Ventricular systole

d)

Ventricular diastole



Question ID - 3512 | SaraNextGen Top Answer

The first heart sound ‘Lubb’ occurs in which phase of the cardiac cycle?

a)

Isometric relaxation

b)

Atrial diastole

c)

Ventricular systole

d)

Ventricular diastole

1 Answer
127 votes
Answer Key / Explanation : (a) -

(a)

In human heart, right auricle opens into right ventricle and the auriculo-ventricular aperture is guarded by a tricuspid valve. The opening of left auricle into left ventricle is guarded by bicuspid or mitral valve.

127 votes


127