The loss of hair is termed
A. alopecia.
B. albinism.
C. cyanosis.
D. hirsutism.
Answer: A
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Rupture of the papillary muscles in the left ventricle may result in
A) pulmonary valve regurgitation. B) mitral valve prolapse. C) tricuspid regurgitation. D) tricuspid prolapse. E) aortic valve prolapse.
Which of the following will happen to a human cell in a hypotonic solution?
A. I?t will swell B. I?t will maintain its normal volume C. I?t will burst D. I?t will crenate
Axons carrying visual information synapse in the _________ of the thalamus.
A) medial geniculate nucleus B) lateral geniculate nucleus C) ventral posterior nucleus D) None of the above.
In PNS nerve fiber regeneration, how is a growing axon directed to its original destination?
A) It grows within a regeneration tube. B) The axonal terminals grow towards the soma until the two severed fragments are reunited. C) Injured Schwann cells produce a trail of prostaglandins to the original destination. D) The axon grows a collateral that is directed by growth factors secreted by the postsynaptic neuron.