The heart is enclosed in a single-walled,membranous pericardial sac.
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Q38: In what fashion does healthy blood flow?
A)pulsed
B)laminar
C)coagulative
D)condensed
E)regenerative
Q39: What is the parasympathetic nerve supply to
Q40: What is the most common cause of
Q41: The systemic circulation is a circuit of
Q42: Cardiac contraction is graded by varying the
Q44: The Frank-Starling curve shifts up and to
Q45: An insufficient heart valve is often called
Q46: Any variation from the normal rhythm and
Q47: Bicuspid or mitral valves exist between the
Q48: The heart is essentially in the middle
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