The joint between the trapezium and the first metacarpal is a:
a. plane joint
b. saddle joint
c. ball and socket joint
d. condylar (ellipsoidal) joint
Answer: b. saddle joint
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Antigen-presenting cells are ________________, and they display antigens to both ________________ and ______________
60. A. immune cells; B-lymphocytes; T-lymphocytes B. immune cells; helper T-lymphocytes; cytotoxic T-lymphocytes C. any nucleated cell; B-lymphocytes; T-lymphocytes D. any anucleate cell; helper T-lymphocytes; cytotoxic T-lymphocytes E. any blood cell; helper B-lymphocytes; cytotoxic B-lymphocytes
The degenerative effects of osteoporosis are most likely to affect
A) children. B) older women. C) young, active women. D) older men. E) young, active men.
In the laboratory assay on digestion of the protein BAPNA by trypsin, what was the purpose of including a tube with trypsin alone?
A) to indicate that trypsin did not contribute to the yellow (positive) color B) to indicate that trypsin did not contribute to the clear (positive) color C) to indicate that BAPNA did not contribute to the clear (positive) color D) to indicate that BAPNA did not contribute to the yellow (positive) color
Where does protein digestion begin?
A) pancreas B) mouth C) large intestine D) pharynx E) stomach