Which of the following bones is part of the cranium?
A. Vomer
B. Mandible
C. Occipital bone
D. Palatine bone
E. Nasal bone
Answer: C
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Label K represents which structure(s)?
A) trachea B) smallest bronchioles C) bronchus D) alveoli E) bronchioles
If a 0.9% NaCl (saline) solution is isotonic to a cell, then a solution of 3.5% NaCl would be
A. hypertonic to the cell. B. isotonic to the cell. C. hypotonic to the cell. D. catatonic to the cell. E. All of these choices are correct.
A person with endemic goiter suffers from:
A. a hypofunctioning adrenal gland. B. a hyperfunctioning adrenal gland. C. a hypofunctioning thyroid gland. D. a hyperfunctioning thyroid gland.
Which of the following normally occurs when a doctor's reflex hammer taps a patient's patellar tendon?
A. Alpha motor neurons stimulate contraction of extrafusal fibers in extensor muscles. B. Alpha motor neurons stimulate contraction of intrafusal fibers in extensor muscles. C. Golgi tendon organs in the patellar tendon stimulate the contraction of extrafusal fibers of extensor muscles. D. Alpha motor neurons that innervate ipsilateral flexor muscles are stimulated. E. Inhibitory interneurons reduce action potential firing in alpha motor neurons to extrafusal fibers of extensor muscles.