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A&P II FINAL EXAM 2025 ACTUAL TEST WITH 140 QUESTIONS AND CORRECT ANSWERS RATED A+
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A&P II FINAL EXAM 2025 ACTUAL TEST WITH 140 QUESTIONS AND CORRECT ANSWERS RATED A+
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A&P II FINAL EXAM 2025 ACTUAL TESTWITH 140 QUESTIONS AND CORRECT
ANSWERS RATED A+
What organ in the body regulates erythropoeisis?
a. brain
b. kidney
c. pancreas
d. liver Correct Answer b. kidney
Which of the following is not a phase of hemostasis?
a. vascular spasm
b. fibrinolysis
c. coagulation
d. platelet plug formation Correct Answer b. fibrinolysis
The first phase of erythrocyte production is
a. hemoglobin synthesis
b. ejection of the nucleus
c. ribosome synthesis
d. reticulocyte formation Correct Answer c. ribosome synthesis
All blood cells develop from
a. hemocytoblasts
b. ejection of the nucleus
c. myeloid stem cells
d. lymphoid stem cells Correct Answer a. hemocytoblasts
,Which of the following cells could develop from a lymphoid stem
cell?
a. lymphocyte
b. erythrocyte
c. monocyte
d. any blood cell Correct Answer a. lymphocyte
The life span of a red blood cell is about
a. 4 days
b. 4 weeks
c. 4 months
d. 4 years Correct Answer c. 4 months
After hemoglobin is broken down, what part of it enters the liver
and becomes bile, which helps us digest food?
a. globin
b. bilirubin
c. heme
d. ferritin Correct Answer b. bilirubin
Which of the following structural characteristics contribute to the
function of red blood cells
a. bi-concave shape
b. they contain mostly hemoglobin
c. spectrin in their plasma membrane
d. all of the above Correct Answer d. all of the above
If the vagal nerves to the heart were cut, the result would be that
________.
a. the AV node would become the pacemaker of the heart
,b. the heart rate would increase
c. parasympathetic stimulation would increase, causing a
decrease in heart rate
d. the heart would stop, since the vagal nerves trigger the heart to
contract Correct Answer b. the heart rate would increase
the critical factor controlling stroke volume is
a. preload
b. afterload
c. contractility
d. sympathetic stimulation Correct Answer a. preload
Isovolumetric contraction ________.
a. occurs only in people with heart valve defects
b. occurs while the AV valves are open
c. occurs immediately after the aortic and pulmonary valves close
d. refers to the short period during ventricular systole when the
ventricles are completely closed chambers Correct Answer d.
refers to the short period during ventricular systole when the
ventricles are completely closed chambers
The most important factor in the regulation of the heart rate is
a. acidosis
b. autonomic nervous system stimulation
c. stroke volume
d. extracellular calcium levels Correct Answer b. autonomic
nervous system stimulation
Which of the following is not a difference between skeletal and
cardiac muscle?
a. cardiac muscle has a longer refractory period
, b. cardiac muscle exhibits automaticity
c. cardiac muscle has striations
d. cardiac muscle has gap junctions Correct Answer c. cardiac
muscle has striations
Cardiac muscle cells use _____ ions for the plateau phase of the
action potential.
a. calcium
b. potassium
c. sodium
d. chloride Correct Answer a. calcium
Pressure in the ventricles is greatest when
a. they are filling
b. they are relaxed
c. they are in diastole
d. they are in systole Correct Answer d. they are in systole
During ventricular systole, AV valves close because
a. atrial pressure decreases
b. atrial pressure increases
c. ventricular pressure decreases
d. ventricular pressure increases Correct Answer d. ventricular
pressure increases
Blood flow would be increased by
a. decreasing vessel diameter
b. increasing blood vessel length
c. increasing cardiac output
d. decreasing blood pressure Correct Answer c. increasing
cardiac output
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