Question

What type of valves are used in service as single-direction flow control?

A) Check valves
B) Actuated valves
C) Pressure relief valves
D) Manually operated valves

Answer 1

Check valves are used in service as single-direction flow control in the cardiovascular system.

Step-by-step explanation:

In the cardiovascular system, the valves that are used to control the flow of blood in a single direction are called check valves.

Check valves allow blood to flow in one direction while preventing backflow or regurgitation of the blood. They open and close passively in response to pressure differences across the valve.

Examples of check valves in the cardiovascular system include the aortic valve and the pulmonary valve.