Sphincter pupillae muscle — Free Anatomy Illustration | GPAI | GPAI

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Sphincter pupillae muscle — Free Anatomy Illustration | GPAI | GPAI

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Sphincter pupillae muscle

Sphincter pupillae muscle

Anatomy

Sphincter pupillae muscle

Thin circular ring of smooth muscle at the inner pupillary margin of the iris, shown as a narrow concentric band encircling the central dark pupil opening. Compact, sharply defined, and uniform in thickness.

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