Men with cystic fibrosis have difficulty reproducing because the:
a. fallopian tubes are blocked.
b. vas deferens is missing or underdeveloped.
c. men are impotent.
d. women do not ovulate.
B
Men with cystic fibrosis are usually infertile because the vas deferens is missing or underdeveloped.
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In axon sprouting:
a. Healthy neurons re-innervate target cells b. Damaged neurons grow new axons c. Damaged neurons in the spinal cord undergo mitosis to bypass injured regions d. Healthy neurons migrate into injured areas
Which of the following are true regarding large-volume jet nebulizers?
a. A variable air-entrainment port allows air mixing and different FiO2 values. b. Liquid particles are generated by mechanical vibration energy. c. They are pneumatically powered and attach directly to a flowmeter. d. Baffling causes impaction or removal of large, unstable particles. a. 1 and 3 only b. 1, 2, and 3 only c. 2 and 4 only d. 1, 3, and 4 only