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Constricted and Dilated Pupils

Jan Sharp

  • £19.00 GBP

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Image Description:

Illustration showing muscles of the iris responsible for constriction and dilation. The iris sphincter muscle is responsible for constricting, or narrowing the pupil (miosis). This typically happens in bright light. The contraction of the dilator pupillae causes the pupil to dilate or widen (mydriasis). This typically happens in low light or at times of arousal in attraction or attention.

Image File Sizes:



Inches (@300dpi)

cm (@300dpi)


 600 x 299px

 2.0 x 1.0”

 5.1 x 2.5cm


 1800 x 898px

 6.0 x 3.0”

 15.2 x 7.6cm

Anatomy Visible in the Medical Illustration Includes:

circular muscles of the iris, radial muscles of the iris, pupil

Image created by:

Jan Sharp


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