PNB 2265 Exam 2 Sample Questions with
100% Correct Answers | Verified | Latest
Update 2026/2027
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Terms in this set (51)
What causes electrical The cardiac skeleton
contraction between the
ventricles and the atria?
What happens during the fight The LTCC (L type calcium channel) is
or flight response? phosphorylated
Stroke volume decreases Neither the cardioinhibitory center is
when: activated and epinephrine is released
from the cardiac nerve
, During what phase of the Early diastole
cardiac cycle, the pressure
inside of the left ventricle
decreases until it becomes
equal to the pressure inside of
the left atrium?
The inferior vena cava has a larger, lower
_____ radius than na arteriole
and is under _______ pressure.
Due to the law of laplace: neither:
aneurysms are more likely to develop in
smaller vessels
tension is inversely proportional to vessel
radius
In order to decrease the Increase, less than two
resistance in a blood vessel by
a factor of two, radius must ____
by a factor of ______.
Marsha eats at a sushi Her heart stops beating
restaurant she found on
Groupon, and unknowingly
ingests tetradotoxin (a poison
that inhibits voltage gated
sodium channels). As a result:
100% Correct Answers | Verified | Latest
Update 2026/2027
Save
Terms in this set (51)
What causes electrical The cardiac skeleton
contraction between the
ventricles and the atria?
What happens during the fight The LTCC (L type calcium channel) is
or flight response? phosphorylated
Stroke volume decreases Neither the cardioinhibitory center is
when: activated and epinephrine is released
from the cardiac nerve
, During what phase of the Early diastole
cardiac cycle, the pressure
inside of the left ventricle
decreases until it becomes
equal to the pressure inside of
the left atrium?
The inferior vena cava has a larger, lower
_____ radius than na arteriole
and is under _______ pressure.
Due to the law of laplace: neither:
aneurysms are more likely to develop in
smaller vessels
tension is inversely proportional to vessel
radius
In order to decrease the Increase, less than two
resistance in a blood vessel by
a factor of two, radius must ____
by a factor of ______.
Marsha eats at a sushi Her heart stops beating
restaurant she found on
Groupon, and unknowingly
ingests tetradotoxin (a poison
that inhibits voltage gated
sodium channels). As a result:
