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What is the motor response in the light pupillary reflex?
A) Movement of eye to focus on near objects
B) Contraction of ciliary bodies altering shape of lens to focus light
C) Dilation of the smooth muscles of the iris
D) Constriction of smooth muscles of the iris
Light Pupillary Reflex
The light pupillary reflex is the involuntary constriction of the pupil in response to light exposure, helping to protect the retina from excessive light damage.
Constriction
Constriction refers to the narrowing of a passage or vessel, often as a response to nerve signaling or chemical stimuli.
Iris
The colored part of the eye that controls the size of the pupil and, consequently, the amount of light that enters the eye.
- Catalog and grasp the tasks of the various segments of the nervous system (central, peripheral, autonomic, somatic).
- Understand the principles of sensory transduction in the context of taste, vision, and olfaction.
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Learning Objectives
- Catalog and grasp the tasks of the various segments of the nervous system (central, peripheral, autonomic, somatic).
- Understand the principles of sensory transduction in the context of taste, vision, and olfaction.
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