The epiphyses of long bones are ________
A) hollow B) solid C) filled with spongy bone
Answer: C
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Occasionally three polar bodies are found clinging to the mature ovum. One came from an unequal division of the ovum, but from where did the other two arise?
A) There were originally four polar bodies and one disappeared. B) One is an undeveloped primary oocyte that failed to mature. C) The first polar body has also divided to produce two polar bodies. D) What you really see are two polar bodies and the sperm that will fertilize the egg.
The superior opening of the larynx is called the __________.
Fill in the blank(s) with the appropriate word(s).
The intrinsic muscles of the hand originate
A) primarily on the tarsal and metatarsal bones, and insert on the phalanges. B) on the pectoral girdle and arm, and insert on the radius, ulna, and/or carpals. C) on the tibia and fibula, and insert on the tarsals, metatarsals, and/or phalanges. D) primarily on the carpal and metacarpal bones, and insert on the phalanges. E) on the pelvis and femur, and insert on the tibia and/or fibula.
Summation is increased force output by a muscle when
A. receiving many stimuli in rapid succession. B. there is a buildup of ATP. C. the muscle stretches beyond rest length. D. all fibers contract synchronously.