The slowest category of nerve fibers are the
A. A fibers, and they conduct impulses at 10 meters per second.
B. C fibers, and they conduct impulses at 1 meter per second.
C. D fibers, and they conduct impulses at 0.1 meter per second.
D. C fibers, and they conduct impulses at 100 meters per second.
E. D fibers, and they conduct impulses at 0.01 meter per second.
B
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The type of muscle fibers that are striated, form Y-shaped branches, and are joined by intercalated discs are
A. skeletal. B. cardiac. C. smooth. D. voluntary. E. skeletal and voluntary.
_________ is the twinge of pain that may be felt during ovulation.
Fill in the blank(s) with the appropriate word(s).
This part of the brain contains the arbor vitae.
A. Cerebellum B. Epithalamus C. Pons D. Medulla oblongata E. Cerebrum
On day 14 of a typical 28-day menstrual cycle, LH concentration in the blood will be ________. The endometrium will be ________. Estrogen concentration in the blood is ________.
A. at or near a peak; in the secretory phase; low B. level; starting the proliferative phase; level but high C. at or near a peak; near the end of the proliferative phase; relatively high D. level; sloughing off; low E. low but rising; in the secretory phase; high