Acetic acid's (vinegar) disinfectant action is due to its:
A. acidity, which neutralizes a cell's bases.
B. interference with a cell's metabolism.
C. acidity, which denatures the cell's proteins.
D. acting as a buffer.
Answer: C
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A single axon of a motor neuron branches within the perimysium to form fine branches that end at an expanded:
A) motor end plate. B) synaptic cleft. C) synaptic terminal. D) None of the above.
What is the water vapor pressure of saturated gas at normal body temperature (37° C)?
a. 47.0 mm Hg b. 43.8 mm Hg c. 37.0 mm Hg d. 98.6 mm Hg
In the dialysis setting, which health care professionals would carry out the following tasks? They
a. have primary responsibility for determining the patient's treatment regimen. b. educate patients on the importance of following the prescribed diet and monitor nutritional status. c. discuss psychosocial issues with patients and address problems relating to family support, transportation, and other environmental factors that could affect the patient's compliance with the program of treatment. d. have the most contact with patients on each visit.
What would the ventilation-perfusion ratio equal if the pulmonary blood flow is 5.4 L/min and the alveolar tidal volume is 350 mL, and the respiratory rate is 12/min?
a. 0.54 c. 0.66 b. 0.85 d. 0.78