Question

Usha is giving a presentation on the cardiovascular system. One of her slides shows a diagram of the blood moving from the heart to the arms and legs. Which type of circulation is the slide illustrating?

systemic circulation
pulmonary circulation
systolic circulation
diastolic circulation

Answer 1

The best answer is :
Systolic circulation

The systolic blood circulation is the process when the heart contracts., the oxygen-rich blood from the heart is pumped out into the arteries, from where it is sent to all the body parts.
The node which initiates the contraction through a nerve signal is called the AV node.