A synonym for cephalad is ___________________.
Fill in the blank(s) with the appropriate word(s).
superior
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The type of voltage-gated channel that possesses an inactivation gate that temporarily closes after the channel is active is the
A. voltage-gated potassium channel. B. voltage-gated sodium channel. C. voltage-gated calcium channel. D. voltage-gated chloride channel.
A tropic hormone's actions aimed at maintaining the structural integrity of its target gland are specifically known as __________ actions
Fill in the blank(s) with correct word
Sympathetic stimulation ____ heart rate and ____ the motility in the digestive tract
a. does not affect, decreases. b. decreases, decreases. c. decreases, increases. d. increases, decreases. e. increases, increases.
Select the correct statement about the heart valves.
The AV valves are supported by chordae tendineae so that regurgitation of blood into the atria during ventricular contraction does not occur. The tricuspid valve divides the left atrium from the left ventricle. The mitral valve separates the right atrium from the right ventricle. Aortic and pulmonary valves control the flow of blood into the heart.