What are bone-dissolving cells called?
a) osteogenic cells
b) osteoclasts
c) osteocytes
d) osteoblasts
e) all of these choices
b
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Which is not a component of the RAAS and does not contribute to blood volume and electrolyte homeostasis?
A) renin B) angiotensin C) ADH D) aldosterone E) androgens
In PNS nerve fiber regeneration, how is a growing axon directed to its original destination?
A. The axon grows a collateral that is directed by growth factors secreted by the postsynaptic neuron. B. The axonal terminals grow towards the neurosoma until the two severed fragments are reunited. C. It grows within a regeneration tube. D. Injured Schwann cells produce a trail of prostaglandins to the original destination.
All of the following are functions of the cones in the retina except which one?
A. Photoreceptors for color vision B. They are responsible for the best visual acuity C. Photoreceptors for brighter light conditions D. Photoreceptors for non-color vision
If the pulmonary ventilation rate is 3200 ml/minute with a tidal volume of 400, the respiratory rate is ____ breaths per minute
a. 6 b. 8 c. 14 d. 16 e. 20