Exam 2026 Actual Complete Real Exam Questions And Correct
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Vasoconstrictors - ANSWER-constrict arterioles and cause
contraction of
precapillary
sphincters
-decrease flow into
capillary beds
-increase in oxygen, sympathetic tone,
Angiotensin II, ADH
Blood Pressure - ANSWER-is the force of blood against vessel
wall
Mean Arterial Pressure (MAP) - ANSWER-is the average arterial
blood pressure
across the entire cardiac cycle in which the
diastole lasts longer
=diastolic pressure +1/3 pulse
pressure
, Blood pressure gradient - ANSWER-change in pressure from
one end of vessel
to
other
Systolic - ANSWER-occurs when the ventricles contract
Diastolic - ANSWER-occurs when the ventricles relax (120/80)
Varicose Veins - ANSWER-The vein valves become insufficient
to block the backflow of blood resulting in the pooling of blood
in this region and increased pressure/stretching of vein
structure
Total cross-sectional area - ANSWER-is sum of diameters of
all vessels of a certain type
-the cross-sectional areas of capillaries is largest because
there are so many capillaries
Blood flow velocity - ANSWER-is inversely related to total
cross-sectional area
-blood flow is slow in capillaries, allowing the exchange
between blood and
tissue
fluid