Visual system - Eye

The visual system is the part of the nervous system which allows organisms to see. It interprets the information from visible light to build a representation of the world surrounding the body. Note that different species are be able to see different part of the light spectrum; for example, some can see into the ultraviolet, while others can see into the infrared. This article mostly describes the visual system of mammals, although other "higher" animals have similar visual systems. In this case, the visual system consists of:Including:

• Visual system - Eye
• Visual system - Optic nerve
• Visual system - Optic chiasm
• Visual system - Optic tract
• Visual system - Lateral geniculate nucleus
• Visual system - Optic radiations
• Visual system - Visual cortex

Read more here: » Visual system: Encyclopedia - Visual system

The eye is a complex biological device. The functioning of a CCD camera makes an apt metaphor for the workings of the eye, which takes visible light and converts it into a stream of information that can be transmitted via nerves. Light entering the eye is refracted as it passes through the cornea. It then passes through the pupil (controlled by the iris) and is further refracted by the lens. The lens inverts the light a ...

See also:

Visual system, Visual system - Eye, Visual system - Optic nerve, Visual system - Optic chiasm, Visual system - Optic tract, Visual system - Lateral geniculate nucleus, Visual system - Optic radiations, Visual system - Visual cortex

Read more here: » Visual system: Encyclopedia II - Visual system - Eye

The visual cortex is the most massive system in the human brain and is responsible for higher-level processing of the visual image. It lies at the rear of the brain (highlighted in the image), above the cerebellum. The interconnections between layers of the cortex, the thalamus, the cerebellum, the hippocampus and the remainder of the areas of the brain are under active investigation. Currently, much of what is known stems from patients with damage to known areas of the brain, with a corresponding study of ...

See also:

Visual system, Visual system - Eye, Visual system - Optic nerve, Visual system - Optic chiasm, Visual system - Optic tract, Visual system - Lateral geniculate nucleus, Visual system - Optic radiations, Visual system - Visual cortex

Read more here: » Visual system: Encyclopedia II - Visual system - Visual cortex