What is the smallest of all blood vessels?
A. Vein
B. Arteriole
C. Venule
D. Capillary
Answer: D
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If the pituitary gland is removed from a human subject, which of the following is likely to occur?
A. The adrenal gland will hypertrophy to increase cortisol production. B. There will be increased negative feedback on growth hormone by insulin-like growth factor 1 (IGF-1). C. The subject will remain euthyroid. D. The hypothalamus will secrete less CRH. E. The adrenal gland will atrophy and plasma cortisol levels will be reduced.
Tubular reabsorption involves all of the following except
A) active transport. B) facilitated diffusion. C) cotransport. D) countertransport. E) stem cell movements.
The fibrous covering of the eye consists of the white outer layer, known as the ________, and a transparent portion known as the ________
A) sclera; cornea B) conjunctiva; sclera C) iris; pupil D) pupil; cornea
Many upper motor neurons synapse with lower motor neurons in the ________.
A. posterior root ganglion B. posterior column C. anterior column D. posterior horn E. anterior horn