The incus articulates with which bone(s)?
A. Malleus and stapes
B. Malleus
C. Stapes
D. Malleus, stapes, and temporal
E. Malleus, stapes, and tympanic
A. Malleus and stapes
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Diarrhea often accompanies intestinal infections. Why?
A) Loss of electrolytes will kill bacteria. B) Dehydration of the body will kill the bacteria causing the infection. C) The immune system increases the production of enzymes for added protection. D) Bacterial toxins enhance the secretion of KCl from the cells, which causes water movement into the intestine.
Vagal influences on the heart result in
a. enhanced calcium permeability at the SA node. b. enhanced potassium permeability at the SA node. c. less frequent depolarization of the SA node. d. both (a) and (b) above. e. both (b) and (c) above.
Which ion is primarily reabsorbed when hydrogen ions are secreted?
A. Potassium B. Sodium C. Chloride D. Calcium
Thyroid hormone's effects are to
A. increase metabolic rate and body temperature by increasing protein synthesis in target cells. B. increase metabolic rate and body temperature by turning on the G protein, cAMP cascade. C. decrease metabolic rate and body temperature by increasing protein synthesis in target cells. D. increase metabolic rate and body temperature by turning off the G protein, cAMP cascade. E. decrease metabolic rate and body temperature by turning on the G protein, cAMP cascade.