The hip socket is more technically referred to as which of the following?
A. The glenoid cavity
B. The acetabulum
C. The obturator foramen
D. The foramen magnum
E. The olecranon fossa
B. The acetabulum
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Cells that support neurons are _________
Fill in the blank(s) with correct word
Both the thin and thick filaments change length during muscle fiber shortening
a. True b. False Indicate whether the statement is true or false
Name the air-filled spaces lined by mucous membranes found within flat and irregular bones.
A. Short bone B. Medullary cavities C. Foramina D. Sinuses
When calcium ion binds to troponin,
A) tropomyosin moves into the groove between the helical actin strands. B) active sites on the myosin are exposed. C) troponin shifts to expose the active sites on actin. D) muscle relaxation occurs. E) myosin shortens.