The vertebral arteries arise from the ________.
A. right and left subclavian arteries
B. right and left common carotid arteries
C. thyrocervical arteries
D. costocervical arteries
Answer: A
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a) leakage channel b) ligand-gated channels c) mechanically gated channels d) voltage-gated channels e) temperature-sensitive channel
Small folds in the cerebellar cortex are called ________
A) Purkinje B) vermis C) arbor vitae D) folia
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A) free head. B) zone of overlap. C) M line. D) triad. E) sarcomere.
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A. Pulmonary semilunar valve B. Aortic semilunar valve C. Right atrioventricular valve D. Right atrium E. Left ventricle