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The Eye and The Ear

The Eye has several parts which help us not only see trees or other people it also helps us to see simple things such as colours red, orange, yellow, green, blue and violet, as for how it functions there are several different parts to an eye and each with a separate role:

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Pupil: The Pupil is a hole located in the center of the iris of the eye that allows light enter towards the retina.

Lens: The lens is located just behind the iris and it's purpose is to focus light onto the retina.

Iris: The iris controls light levels inside the eye which is very similar to the aperture on a camera.

Retina: The Retina is the sensitive tissue lining up the inner surface of the eye.

Cornea: The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber. Together with the lens, the cornea refracts light.

Macula: The highly pigmented oval shaped area near the center of the eye is purpose is to absorb any excess blue or ultraviolet light in a way it is like an organic sunblock on our eyes.

Fovea: Located in the midst of the macula it's purpose it to provide sharp vision which help us do what we can today such as reading or driving.

Optic nerve: This part of the eye is responsible for transmmiting visual data to the brain which in other words lets us know what we are looking at.



The Ear is mostly hidden inside our head with three main parts those are:the outer ear, middle ear and inner ear.

Outer Ear: The outer ear is the external portion of the ear

Ear Canal : A tube which leads from the outer ear to the eardrum.

Eardrum: A thin membrane which separates the outer ear form the inner ear.

Middle Ear: A portion of the eardrum between the cochlea and the rest of the eardrum.

Cochlea: The audio portion of the inner ear.

Inner Ear: The innermost part of the vertebrate ear.

Eustachian Tube: The eustachian tube is what that links the pharynx to the middle ear, it is also part of the middle ear.