A break in a bone that is already weakened by some other disease is called a(n) ________ fracture.
A. displaced
B. greenstick
C. pathologic
D. open
E. closed
Answer: C
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Identify the internal auditory canal
a) C b) D c) E d) F e) H
Latrotoxin, produced by the poisonous black widow spider, increases the release of acetylcholine. How do muscle cells respond?
A) Muscle cells will experience a longer latent period when excess acetylcholine exists. B) Muscle cells will become paralyzed when excess acetylcholine exists. C) Muscle cells will experience fused or complete tetanus when excess acetylcholine exists. D) Muscle cells will twitch irregularly when excess acetylcholine exists.
If you are examining a Node of Ranvier, what part of the neuron are you immediately observing?
A) Axolemma of an axon B) Cell body C) Axon D) Schwann cells
Where are the palatine tonsils?
a) E b) F c) R d) U e) None of these choices