What are the cells of the rod?

The cells of the rods that are located in the retina allow people and night animals to be seen in situations with weak lighting. They are named for their cylindrical shape and are highly sensitive to light. They also provide peripheral vision, a view that occurs on the edge of the field of view. The cones are used for daily vision and therefore need a lot of light to work. They can distinguish between colors and provide detailed eyesight or sharpness of sight. Different cones are responsible for recognizing different colors, as different light strips produce different color belts. Highly photo -sensitive rod cells are responsible for night vision and the lack of them causes a condition called night blindness. Unlike cones, the cells of the rod cannot distinguish between colors and do not provide many visual sharpness.

Light Passes in the eye through the cornea, a transparent film that covers the outer part of the eye. It covers the iris and pupils and licks incoming light. Aqueous humor is a thick liquid that sits around the cornea and before lensKou.

Behind the lens is a large cavity that is filled with a gel called through humor. The retina is a tissue -sensitive belt that ovrates around the festive humor and limits the inner surface of the eye. Inside this tissue -sensitive tissue zone is a place where bar cells and conical cells are located. The retina contains about seven million cones and more than 100 million rods.

After the light passes through the cornea, it passes to the lens and then through glass humor and finally reaches the area of ​​the retina light. Once the light reaches the retina, a chemical reaction occurs. The optical nerve receives information through electrical pulses sent by produced chemicals.

Optical nerve, also called the cranial nerve of two, transmits visual information to optics or vision, center in the brain. This vision center is located in the back of the brain, in an area called occipital lobe. This part of the brain is in the backThe parts of the head A are covered with a cranial bone known as the occipital bone. The process by which the visual organs collect information and transfer it to the brain that creates psychological consciousness is called visual perception.