For defecation to take place, the puborectalis must
A. relax.
B. contract.
Answer: A
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Bile salts
a. aid fat digestion. b. aid fat absorption through micelle formation. c. are secreted into the bile. d. both (a) and (b) above. e. all of these answers.
Inspiration results when the diaphragm and external intercostal muscles relax
Indicate whether the statement is true or false
Cytotoxic T-lymphocytes destroy infected cells by
A. increasing the permeability of infected cells and inducing apoptosis. B. increasing the permeability of infected cells and preventing apoptosis. C. decreasing the permeability of infected cells and inducing apoptosis. D. decreasing the permeability of infected cells and preventing apoptosis.
With a respiratory rate of 12 breaths per minute and a tidal volume of 500mL, what would the minute ventilation be?
A. 500 mL per minute B. 600 mL per minute C. 41.6 mL per minute D. 6 liters per minute E. 60 liters per minute