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Which of the following statements about cardiac anatomy is CORRECT: A. Papillary muscles contract to open the...

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Medical Sciences

Which of the following statements about cardiac anatomy isCORRECT:

A. Papillary muscles contract to open the AV valves.

B. Cardiac cells in the SA node are functionally coupled bychemical synapses.

C. The heart does not have its own arteries, capillaries, andveins because it obtains vital substances from the blood that isbeing pumped through it.

D. The volume of the left ventricle is equal to the volume ofthe right ventricle.

*Option D is the correct answer, pleaseexplain why choice D is correct, and whychoice A is incorrect! Thank you!

Answer & Explanation Solved by verified expert
3.7 Ratings (587 Votes)
The volumes of left and right ventricles are always equal despite differences in size shape and function Right ventricle pumps blood to lungs while let ventricle supplies blood to rest of body Blood circulation is a closed loop These equal volumes pumped by both ventricles are required to    See Answer
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