Pupil Anatomy

The function of the pupil was to control the amount of light allowed to pass into the eye. The iris has two sets of muscles.

File 1508 Autonomic Control Of Pupil Size Jpg Wikimedia

The dilation of ones pupils could be an indicator of dishonesty.

Pupil anatomy. Dilator muscles that radiate out from the center of the iris help to dilate the pupil. A pupil was the dark area of an eye surrounded by the iris. The size of the opening is governed by the muscles of the iris which rapidly constrict the pupil when exposed to bright light and expand dilate the pupil in dim light.

Up the long ladder talaxians and humans both experienced pupil dilation when attracted romantically to others. Pupil in the anatomy of the eye the opening within the iris through which light passes before reaching the lens and being focused onto the retina. There is not much historical detail which is a pity but most of the references and anecdotes can be found scattered elsewhere in the text.

The opening at the center of the iris that allows light to enter the eye. Sphincter muscles constrict the pupil like a drawstring. The first chapter in the section titled methods of pupil testing is a brief account of the clinical examination of the pupils.

The pupil is a hole located in the center of the iris of the eye that allows light to strike the retina. It appears black because light rays entering the pupil are either absorbed by the tissues inside the eye directly or absorbed after diffuse reflections within the eye that mostly miss exiting the narrow pupil.

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