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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Name the type of membrane channel that opens in response to touch, pressure, vibration, or tissue stretching and is found in the auditory receptors of the ear, and in touch and pressure receptors in the skin
a) leakage channel b) ligand-gated channels c) mechanically gated channels d) voltage-gated channels e) temperature-sensitive channel
The complex of a transverse tubule and two adjacent terminal cisternae is known as a(n)
A) free head. B) zone of overlap. C) M line. D) triad. E) sarcomere.
In this figure showing an anterior view of the heart, what is depicted by number 7?
A. Pulmonary semilunar valve B. Aortic semilunar valve C. Right atrioventricular valve D. Right atrium E. Left ventricle
Small folds in the cerebellar cortex are called ________
A) Purkinje B) vermis C) arbor vitae D) folia