The tough connective tissue sac surrounding the heart is the
A) myocardium.
B) epicardium.
C) peritoneal cavity.
D) pericardium.
E) endocardium.
Correct Answer:
Verified
Q7: Cardiac output may be increased by a
A)
Q7: Vertebrates with a three-chambered heart include
A) fish.
B)
Q8: Blood has many functions in the human
Q10: At the emergency room where you work,a
Q10: The upper chambers of the mammalian heart
Q11: Each day the human heart sends a
Q11: The large vessels that carry blood to
Q15: The simplest animals with a closed circulatory
Q17: The middle layer of the wall of
Q35: A heartbeat begins in the
A) atrioventricular valve.
B)
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