The parasympathetic postganglionic axons that travel to the pupillary constrictor muscle result in pupil ________ when the eye is exposed to bright light
Fill in the blank with correct word.
constriction
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What second messenger most directly causes calcium ions to be released from intracellular stores?
A. Phospholipase A B. Phospholipase C C. Diacylglycerol D. Adenylyl cyclase E. inositol trisphosphate
In the tetrapod circulatory system, the right side of the heart is responsible for the __________ circuit, and the left side is responsible for the __________ circuit
Fill in the blank with correct words.
Which of the following terms means "farther from the head"?
A. distal B. proximal C. superior D. inferior
If a motor neuron in the body were stimulated by an electrode placed about midpoint along the length of the axon ________
A) the impulse would move to the axon terminal only, and the muscle contraction would occur B) the impulse would spread bidirectionally C) muscle contraction would occur D) the impulse would move to the axon terminal only