Excessive vagal stimulation of the heart will result in _______
A) a decrease in heart rate and, eventually, a temporary cessation of the heartbeat
B) a decrease in the force of contraction
C) an increase in heart rate
D) an increase in the force of contraction
Ans: A) a decrease in heart rate and, eventually, a temporary cessation of the heartbeat
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The area of the skin that provides sensory input to the CNS via one pair of spinal nerve is called
a) a dermatome. b) a microtome. c) perineurium. d) a fascicle. e) an epitome.
Mrs. Becker is trying to become pregnant. One of the Beckers' favorite ways of relaxation is to soak in the hot tub while drinking wine. A year has gone by with no pregnancy occurring, so they visit your clinic. You conclude that the hot tub is a possible factor in Mr. Becker's infertility. Angered and insulted, both assure you that they have no difficulty having intercourse, unless Mr. Becker
has had too much wine, which happens infrequently. How will you explain to them the difference between impotence and infertility? Why should you suspect the hot tub as a factor in Mr. Becker's lowered sperm count? Is the wine a factor as well? What will be an ideal response?
Inflammation causes the number of white cells in the blood to...
A) increase. B) decrease. C) stay the same. D) become equally distributed throughout
All of the following participate in DNA replication except ________
A) ribosomes B) DNA C) DNA ligase D) DNA polymerase E) DNA helicase