Describe or Give the Function of the Following Structures: Sclera,cornea,iris,pupil,ciliary

question 86

Essay

Describe or give the function of the following structures: sclera,cornea,iris,pupil,ciliary muscle,choroid layer,rods,and cones.

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Definitions:

Epiglottis

A leaf-shaped flap of cartilage located behind the tongue, at the top of the larynx, which prevents food and drink from entering the windpipe during swallowing.

Glottis

The opening between the vocal cords.

Pleura

The thin membrane that covers the lungs and lines the chest cavity, facilitating smooth respiratory movements.

Alveoli

Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.