Question
Which of the following factor(s) increase blood pressure?
Increase of cardiac output
Constriction of blood vessel
Activation of parasympathetic nerve
Increase of blood volume
Solution
A.
Increase of cardiac output
B.
Constriction of blood vessel
D.
Increase of blood volume
Blood pressure is the pressure exerted by circulating blood upon the walls of blood vessels. High blood pressure (hypertension) is dangerous because it makes the heart work harder to pump blood to the body. It contributes to the increase in total cardiac output, constriction or hardening of arteries (blood vessel), increase in the blood volume, etc.
