Contraction of the cremaster muscle
A) moves the testis closer to the body cavity.
B) propels sperm through the urethra.
C) produces an erection.
D) moves sperm through the ductus deferens.
E) None of the answers are correct.
A) moves the testis closer to the body cavity.
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The _________________________ valve controls the blood flow passing into the pulmonary trunk.
Fill in the blank(s) with the appropriate word(s).
Hormones that stimulate endocrine glands to release other hormones are
A) humoral. B) tropic. C) reflexive. D) up-regulators. E) paracrine factors.
Which of the following bones might be broken during strangulation?
A) sphenoid bone B) hyoid bone C) temporal bone D) nasal bone E) mandible
When multiple stimuli were applied at 20 stimuli/sec, _______.
A) fused tetanus occurred B) extrasystoles were produced C) triplets representing three ventricular contractions occurred D) atrial contractions completely disappeared