If a fair-skinned person is sunburned, why does his or her skin turn red?
A) The blood supply to the skin decreases.
B) The number of red melanocytes in the skin increases.
C) The blood flow to the skin increases.
D) Increased heat causes the skin to turn red.
E) Melanocytes increase production of red pigments.
Answer: C) The blood flow to the skin increases.
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The fasciculus cuneatus is part of the
A. anterolateral pathway. B. spinocerebellar pathway. C. posterior funiculus--medial lemniscal pathway. D. lateral spinothalamic tract. E. fasciculus gracilis.
In humans, the only cell that bears a flagellum is the ________ cell.
A. kidney B. brain C. red blood D. sperm E. oocyte
The guarding reflex allows the urinary bladder to fill by ________.
A. stimulating sympathetic nerves to the external urethral sphincter to contract B. responding to stretch receptors in the bladder wall C. inhibiting parasympathetic stimulation of the detrusor muscle D. All of the choices are correct.
The ________ ligament encircles the head of the radius and enables it to pivot on the ulna.
Fill in the blank(s) with the appropriate word(s).