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Mechanism Of Seeing (1)

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Mechanism Of Seeing (1) by : 12:40 pm On June 20, 2018

Rhodopsin is responsible for clear vision. The two cell of eyes are
1. Cone
2. Rod
Any animal that have cone than rod is known as Dional. Any one that has Rod than Cone Is Known As Nocturnal.
Nocturnal animal are animal that see clearly at night why dional are animal that see in the day time. The white eye is conjunctival while the dark part is pupil. A human being tears contain LYZOZYME.
Each eye is a spherical organ known as the eyeball. It is located in a bony socket in the skull. Only a small portion of the front part of the eyeball can be seen. This part us protected by an upper eyelid produce a saline tear fluid (Made up of sodium chloride and hydrogen carbonate). We blink automatically every 2 to 10 seconds. This action spreads tear fluid over the eye surfaces cleaning and keeping them moist. Lyzozyme attacks germs. This fluid drains from the surface of the eyes into the nasal cavity via tears duct.
Each eyeball is attached to the eye sockets by six sets of muscles. These muscles enable the eye to move in many directions, thus widening the field of vision. Among these muscles is a single thick nerve, the optic nerve, which connects the eye to the brain.

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