How many taenia coli run the length of the colon?
a. one
b. two
c. three
d. 127
Answer: c. three
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T lymphocytes
a. produce thymosin b. secrete antibodies c. are converted into plasma cells d. mature ad differentiate within the bone marrow. e. have none of the above characteristics
The amount of oxygen unloaded from hemoglobin at the tissue level increases when
a. PCO2 in the tissue increases. b. the concentration of DPG in the red blood cells increases. c. the concentration of DPG in the red blood cells decreases. d. both (a) and (b) above. e. both (a) and (c) above.
If the load on a muscle is increased, eventually a load will be reached at which the velocity of shortening becomes zero. At this point, the muscle contraction is referred to as
a. concentric. b. eccentric. c. isotonic. d. isokinetic. e. isometric.
These tubuloalveolar glands produce a clear, viscous mucin that serves as a lubricant during sexual intercourse.
A. Bulbourethral glands B. Prostate glands C. Areolar glands D. Seminal vesicles