Question

${}^{\prime }{X}^{\prime }$ is the rhythmic contraction and relaxation in the aorta and its main arteries. What is $X$?

• A. Heartbeat
• B. Heart rate
• C. Pulse
• D. Cardiac output

Answer 1

Answer: (C)

Pulse is the rhythmic contraction and relaxation in the aorta and its main arteries. It is a regular jerk of an artery. It is same as the heart rate because an artery pulses every time the heart beats.