BIO 202 Midterm Exam Prep | 3 Versions with
Questions & Detailed Answers
BIO-202 MIDTERM EXAM A
A patient was set to receive fluids IV at a rate of 2mL/min. A problem with the
infusion device actually delivered 20mL/min. Assuming cardiac output remains
constant, how will the system respond?
a) blood pressure will decrease
b) the sympathetic nervous system will increase activity to the muscular arteries
c) the sympathetic nervous system will decrease activity to the muscular arteries
d) the somatic nervous system will activate skeletal muscle to increase venous
return
e) b, c, and d will work to restore homeostasis - ANSWER>>c) the sympathetic
nervous system will decrease activity to the muscular arteries
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Your cardio acceleratory and inhibitory centers are receiving an afferent increase
in the normal number of action potentials. The condition the body must adjust for
is most likely ___________.
a) low blood pressure
b) increased total peripheral resistance
c) high blood pressure
d) high blood glucose
e) two of the above - ANSWER>>c) high blood pressure
The cardiovascular centers are located in the medulla oblongata. Which nuclei is
(are) part of the sympathetic nervous system?
a) vasomotor
b) cardio-acceleratory
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c) cardio-inhibitory
d) a and b
e) none of the above - ANSWER>>d) a and b
Perfusion through the coronary arteries occurs during ventricular diastole.
a) True
b) False - ANSWER>>a) True
The force of blood returning to the heart (venous return) or _______ is influenced
by ________.
a) preload; skeletal muscle contractions
b) afterload; blood pressure
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c) preload; blood pressure
d) motherload; genetics - ANSWER>>a) preload; skeletal muscle contraction
In the flow equation (F=P/R), the greatest effect on the resistance variable is
found in the ________.
a) arteries
b) veins
c) capillaries - ANSWER>>c) capillaries
Vasodilation in an arteriole prompts a _________.
a) increase in resistance
b) decrease in resistance