What is a sarcomere?
A. A compartment in a myofilament
B. The area between two intercalated discs
C. The wavy lines on a the cell, as seen in a microscope
D. The contractile unit between two Z discs
Preview next quiz:
Which of the following is a way that the skeletal system is necessary for the muscular system’s function?
A. the skeletal system has joints, which are what the muscular system pulls on to move
B. the skeletal system provides structure for the muscular system
C. the skeletal system provides calcium, which the muscles require along with ATP to contract
D. all of the above
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