A specialised nodal tissue embedded in the lower corner of the right atrium, close to Atrio-ventricular septum, delays the spreading of impulses to heart apex for about 0.1 sec. The delay allows.

Question

A specialised nodal tissue embedded in the lower corner of the right atrium, close to Atrio-ventricular septum, delays the spreading of impulses to heart apex for about 0.1 sec. The delay allows. (A) blood to enter aorta. (B) the ventricles to empty completely. (C) blood to enter pulmonary arteries. (D) the atria to empty completely.

Tardigrade Admin · Accepted Answer

Correct answer is (d) the atria to empty completely.

Q. A specialised nodal tissue embedded in the lower corner of the right atrium, close to Atrio-ventricular septum, delays the spreading of impulses to heart apex for about 0.1 sec. The delay allows.

blood to enter aorta.

the ventricles to empty completely.

blood to enter pulmonary arteries.

the atria to empty completely.

Correct answer is (d) the atria to empty completely.