Question

1. the left av valve is also called the _ valve. worth 4.000 points. a. tricuspid b. bicuspid c. pulmonic 18. the force of pressure exerted against the arterial walls during heart contraction is the _ phase. worth 4.000 points. a. diastolic b. systolic c. pulse

Explanation:

Question 17

In the heart, the atrioventricular (AV) valves: the right AV valve is tricuspid, and the left AV valve (between left atrium and left ventricle) is also called the bicuspid (or mitral) valve. The pulmonic valve is a semilunar valve, not an AV valve. So option B is correct.

Blood pressure has two phases: systolic (during heart contraction, when pressure is exerted against arterial walls) and diastolic (during heart relaxation). Pulse is the throbbing from blood flow, not a pressure phase. So the force during contraction is systolic, option B.

Answer:

B. bicuspid

Question 18