The internal wall surface of each ventricle displays large,smooth,irregular muscular ridges called
A) conus arteriosus.
B) atrioventricular opening.
C) trabeculae carneae.
D) chordae tendineae
E) pectinate muscles
Correct Answer:
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Q21: Typically,there are _ papillary muscles that project
Q22: Which bears a close structural relationship with
Q23: Which valve prevents the backflow of blood
Q24: During a cardiac cycle,how many of the
Q25: Pectinate muscles are found on the
A)anterior wall
Q27: The trabeculae carneae in the left ventricle
Q28: The papillary muscles attach to the cusps
Q29: The heart valves
A)stabilize and hold the arteries
Q30: For _ of the cardiac cycle,all four
Q31: Which structure marks the end of the
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