A&P 2 ACTUAL EXAM 1 2025-2026 \NEWEST VERSION
WITH COMPLETE QUESTIONS AND ACCURATE
DETAILED ANSWERS \VERIFIED ANSWERS ALREADY
GRADED A+ \ASSURED PASS \BRAND NEW 2025-2026
Low O2 levels are an a. intrinsic; vasodilation
example of an ____
mechanism that will
cause ____________ of
arteries in
the systemic circuit
a. intrinsic; vasodilation
b. intrinsic; vasoconstriction
c. extrinsic; vasodilation
d. extrinsic; vasoconstriction
drinking a large amount of b. increase
water will cause blood
pressure to
a. decrease
b. increase
The tunica of blood vessels a. media
includes a
layer of smooth muscle
a. media
b. intima
c. externa
vasorum
d.
Thrombocytopenia means: a. platelet deficiency
a. platelet deficiency
b. low RBC count
c. excessive blood clot
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formation
d. deficiency of leukocytes
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Which is NOT a granulocyte a. lymphocyte
a. lymphocyte
b. eosinophil
c. neutrophil
d.basophil
The _ separates the left atrium b. Bicuspid (mitral) valve
from the
left ventricle
a. tricuspid valve
b. bicuspid (mitral) valve
c. aortic semilunar valve
pulmonary semilunar valve
d.
Cardiac depolarization, in a c. sinoatrial (SA)node
healthy individual,
originates from the:
a. subendocardial network
b. atrioventricular (AV) node
c. sinoatrial (SA) node
atrioventricular (AV) bundle
d.
The action of the atrial c. extrinsic; vasodilation
natriuretic peptide (ANP) on
an artery is an example of an
_____ mechanism will cause
______________ of arteries
in the
systemic circuit
a. extrinsic; vasoconstriction
b. intrinsic; vasodilation
c. extrinsic; vasodilation
intrinsic; vasoconstriction
d.
Which is a vasoconstrictor d. norepinephrine
a. CO2
b. nitrous oxide
c. atrial natriuretic peptide
d. norepinephrine
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an erythrocyte is capable of c. 4
binding ________________ O2
molecules
a. 2
b. 1
c. 4
d. 3
The _____ nervous system acts b. sympathetic; cardiac myocytes
on___________________ ,
which
affects contractility by
increasing both Ca2+
influx and efflux
a. parasympathetic; cardiac
myocytes
b. sympathetic; cardiac
myocytes
c.sympathetic; pacemaker cells
Blood exits from the of b. left ventricle
the heart as it
departs toward the systemic
circuit
a. left atrium
b. left ventricle
c. right ventricle
d.right atrium
A(n) is a metal wire tube a. stent
placed inside
a narrowed blood vessel to
hold it open, thereby
increasing lumen diameter
a. stent
b. angioplasty
c. statin
d. stenosis
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