Which phase of the cardiac cycle is longest?
A) isovolumetric relaxation B) isovolumetric contraction
C) ventricular systole D) ventricular diastole
Answer: D
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What structure filters the blood to regulate its composition?
A) urethra B) bladder C) liver D) ureter E) kidneys
The dorsal cavity contains the _____.?
A) ?heart and lungs B) ?major organs of digestion C) ?structures of the central nervous system
Which of the following muscles belongs to the flexors of the knee muscle group?
A) biceps femoris B) semimembranosus C) semitendinosus D) All of the answers are correct. E) None of the answers is correct.
The muscular system consists of the ________
A) skeletal muscles B) muscles of the heart C) muscles in the walls of hollow organs D) skeletal muscles and the muscles of the heart E) muscles of the heart and those in the walls of the hollow organs