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colleen colleen
wrote...
Valued Member
Posts: 17076
10 years ago
A sudden flash of bright light would cause
A) parasympathetic activation to contract the pupillary constrictor muscles.
B) sympathetic activation to contract the pupillary constrictor muscles.
C) parasympathetic activation to contract the pupillary dilator muscles.
D) sympathetic activation to contract the pupillary dilator muscles.
E) contraction of the ciliary muscle.
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Sunshine ☀ ☼
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Answer accepted by topic starter
doseofmegandoseofmegan
wrote...
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Posts: 1119
10 years ago
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