Which of the following valves is assisted in functioning by the papillary muscles?
A) mitral valve
B) tricuspid valve
C) bicuspid valve
D) right atrioventricular valve
E) All of the answers are correct.
E) All of the answers are correct.
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While examining a sample of muscle tissue under a microscope, you notice that the cells are multinucleated. They are long, unbranched, striated, and contain a developed transverse tubule system. Which muscle type does this sample contain?
A. Striated muscle B. Skeletal muscle C. Smooth muscle D. Cardiac muscle
What part of the body does the biceps femoris move?
a. head and neck b. upper extremities c. trunk of the body d. lower extremities
The free edges of the atrioventricular valves are attached to fibers called ____________________.
chordae tendineae liberated fibers pectinate muscles papillary muscles trabecula carnae
Which of the following is NOT an action of parathyroid hormone?
A. Decreases the release of phosphate from bone. B. Stimulates osteoclast activity resulting in the release of calcium. C. Stimulates increased reabsorption of calcium in the kidneys. D. Stimulates absorption of calcium from the small intestine. E. Increases enzymatic formation of active vitamin D.