What are the 5 main parts of the eye?; What are the 7 parts of the human eye?; What are the 12 structures of the eye?; What are the 9 parts of an eye?

Respuesta :

The eye is made up of seven major components that all work together to keep us seeing clearly every day.

Human eye parts include:

  1. Sclera.
  2. Cornea.
  3. Iris.
  4. Pupil.
  5. Lens.
  6. Retina.
  7. Optical nerves

An Eye's External Structure

Sclera: A noticeable white part. It is formed of dense connective tissue and serves to protect the internal organs.

Conjunctiva: is a layer of stratified squamous epithelium that lines the sclera. It keeps our eyes moist and clear while also providing lubrication through the secretion of mucus and tears.

Cornea: The cornea is the transparent, anterior or front component of our eye that covers the pupil and iris.

Iris: The pigmented, colored region of the eye that is visible from the outside.  

Pupil: is the tiny aperture in the center of the Iris. It lets light in and focuses it on the retina.

An Eye's Internal Structure

A lens is a transparent, biconvex eye lens.

Retina: is the eye's innermost layer. It is light sensitive and functions like a camera film.

The optic nerve is found in the posterior region of the eyes.

Aqueous Humour: A watery fluid that exists between the cornea and the lens. It nourishes and maintains the eye's elasticity.

Vitreous Humour is a clear, jelly-like material that exists between the lens and the retina.

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