In the figure of a sagittal section of a fingernail shown, where is the hyponychium (nail bed)?
a) B
b) C
c) E
d) F
e) G
Answer: e
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Which is TRUE about reflexes initiated by muscle spindle activation?A) They have a monosynaptic component.B) They result in activation of gamma motor neurons.C) They result in activation of extrafusal muscle fibers.D) The "knee-jerk" reflex is an example.E) They inhibit the activation of muscles that are stretched.
What will be an ideal response?
The cervical sympathetic trunks:
A) are in the carotid sheaths. B) connect to cervical spinal nerves by gray and white communicating rami. C) emit cardiopulmonary splanchnic nerves. D) emit cranial splanchnic nerves. E) typically have ganglia associated with each spinal level.
Since there are no genes coding for carbohydrates, nucleic acids, or lipids, how do cells produce them?
A. Enzymes encoded by genes synthesize these products. B. Cells import these products from older cells. C. Cells absorb these products by endocytosis. D. Cells are born with all the products they need. E. Cells can produce carbohydrates, nucleic acids, and lipids out of proteins.
Apoptosis occurs
A) from the embryo onward. B) only when someone has a disease. C) only in the aged. D) only in adults.