ANATOMY & PHYSIOLOGY II CARDIOVASCULAR
PRACTICE TEST WITH 350 QUESTIONS AND
CORRECT VERIFIED ANSWERS/ D313
CARDIOVASCULAR TEST QS & AS PLUS A STUDY
GUIDE
Chemical substances secreted by cells into the
extracellular fluids that travel through the blood and
regulate the metabolic function of other cells in the body
are called ____________. - ..ANSWER...✓✓ Hormones
Which is most responsible for the synchronized
contraction of cardiac muscle tissue? - ..ANSWER...✓✓
Gap Junctions
When neither Anti-A serum nor Anti-B serum clot on a
blood plate with donor blood, the blood is type __________.
- ..ANSWER...✓✓ Type O
Which of the choices below is the parent cell for all
formed elements of blood? - ..ANSWER...✓✓
Hemocytoblast
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Johanna, a 7-year-old girl, is significantly shorter than
normal for her age. Her doctor recommends treatment
with a hormone before her growth plates ossify in her
long bones. Which hormone is recommended? -
..ANSWER...✓✓ Growth Hormone
Which is NOT a vessel that brings blood directly into the
right atrium? - ..ANSWER...✓✓ Pulmonary Vein
The plateau phase of an action potential in cardiac muscle
cells is due to the _______. - ..ANSWER...✓✓ Influx of
Ca2+ through slow Ca2+ channels
The length of the absolute refractory period in cardiac
muscle cells was the same as it is for skeletal muscle
cells, ________. - ..ANSWER...✓✓ Tetanic contractions
might occur, which would stop the heart's pumping action
Which of the following is NOT a category of endocrine
gland stimulus? - ..ANSWER...✓✓ Enzymatic
How do glucocorticoids enable the body to deal
appropriately with stress? - ..ANSWER...✓✓ By
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increasing blood glucose, fatty acid, and amino acid levels
and enhancing blood pressure
Steroid hormones exert their action by _______. -
..ANSWER...✓✓ Entering the nucleus of a cell and
initiating or altering the expression of a gene
Antidiuretic hormone (ADH) _______. - ..ANSWER...✓✓
Secretion in inhibited by alcohol
Virtually all amino acid-based hormones exert their
signaling effects through intracellular _______. -
..ANSWER...✓✓ Second messengers
Isovolumetric contraction _______. - ..ANSWER...✓✓
Refers to the short period during ventricular systole
when the ventricles are completely closed chambers
A person with an extremely high count of neutrophils is
likley suffereing _______. - ..ANSWER...✓✓ A bacterial
infection
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The foramen ovale _______. - ..ANSWER...✓✓ Connected
the two atria in the fetal heart
Which chambers of the heart contain oxygenated blood? -
..ANSWER...✓✓ Left atrium and ventricle
Which of the following receive(s) blood during ventricular
systole? - ..ANSWER...✓✓ Both the aorta and pulmonary
trunk
Which of the following is NOT part of the intrinsic
conduction system of the heart? - ..ANSWER...✓✓
Atrioventricular (AV) valve
The single most important regulation of calcium levels in
the blood is _______. - ..ANSWER...✓✓ Parathyroid
hormone
If the mitral valve is unable to close properly, _______. -
..ANSWER...✓✓ Blood could flow back into the left atrium