When blood from a normal adult is centrifuged as shown in the figure, which of the following components occupies the greatest volume?
a) plasma
b) red blood cells
c) platelets
d) buffy coat
e) white blood cells
a
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Regulation of mineral homeostasis would be inhibited due to decreased secretion of ________.
A. growth hormone-releasing hormone B. dopamine C. corticotropin-releasing hormone D. gonadotropin-releasing hormone
This part of the ANS causes erection and ejaculation in the male reproductive system
A) sympathetic B) parasympathetic C) both sympathetic and parasympathetic
Which statement is true regarding the action of an oligodendrocyte?
A. A neurolemmocyte attacks pathogens. B. An oligodendrocyte is responsible for forming part of the blood-brain barrier. C. Oligodendrocytes function only within the PNS. D. Each oligodendrocyte can form a myelin sheath around many axons simultaneously. E. Each oligodendrocyte can wrap only a 1-mm portion of a single axon.
What term describes a sustained muscle contraction?
A. Tetanus B. Tetani C. Tetany D. Twitch