Questions with 100% Correct Answers
T/F: The two ventricles contract almost simultaneously - ANSWERSTrue
T/F: the conduction system of the heart includes two nodes and a network of conduction
fibers - ANSWERSTrue
T/F: in an EKG, the ventricles contract when they repolarize - ANSWERSFalse
T/F: the aortic valve is an atrioventricular valve - ANSWERSFalse
T/F: deoxygenated blood first enters the heart at the left atrium - ANSWERSFalse
T/F: blood returns to the heart through beins - ANSWERSTrue
T/F: the tunica media is the layer of blood vessels responsible for
vasoconstriction/vasodilation - ANSWERSTrue
Which of the following is a function of the cardiovascular system?
A. Transportation of oxygen
B. Removal of carbon dioxide
C. Assistance with immune function
D. All of the above - ANSWERSAll of the above
The vessel with the smallest diameter is a __ - ANSWERSCapillary
The amount of blood pumped from the heart per beat is the ____ - ANSWERS...
The sympathetic nervous system being activated would result in which of the following?
A. Decrease heart rate
B. Increase heart rate
C. Help the Body relax
D. Low blood pressure - ANSWERSIncrease heart rate
What is the protective membrane surrounding the heart? - ANSWERSPericardium
Semilunar valves present back flow of blood into the ____ - ANSWERSVentricles