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Home Q & A Board Biology-Related Homework Help Anatomy and Physiology
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Beanieman Beanieman
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8 years ago
The radial muscles of the iris are innervated by the ________ nervous system and their contraction causes pupillary ________.
A) sympathetic : dilation
B) somatic : constriction
C) parasympathetic : constriction
D) sympathetic : constriction
E) parasympathetic : dilation
Textbook 
Principles of Human Physiology

Principles of Human Physiology


Edition: 5th
Author:
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venuskyvenusky
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7 years ago
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Beanieman Author
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7 years ago
Honestly anatomy has been the toughest course, thanks for taking a load off my back
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7 years ago
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