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The human body has two major types of senses: special senses and general senses. Special senses have specialized sense organs and include vision (eyes), hearing (ears), balance (ears), taste (tongue), and smell (nasal passages).
- Christine Miller
- 2020
Jan 14, 2021 · To understand how the human eye works, you need to know the names and functions of its structures. Cornea : The cornea is the transparent outer surface of the eye. Because the eyeball is round, the cornea acts as a lens that bends or refracts light.
Feb 13, 2024 · Table of Contents (click to expand) Essential and irreplaceable organs, such as the eyes and the brain, are subject to a limited amount of preservation from the body’s immune system. This is called their “immune privilege.” For your immune system, the eyes have a giant ‘NO ENTRY’ written over them.
- 3 min
The simplest explanation is that what we see is a result of light entering the eyes through the cornea and lens, which direct and focus the light towards the photosensitive cells (rods and cones) in the retina. Rods work in low light, while cones require bright light but give us colour vision.
Most people are born with two eyes. Working together, they give you a field of view about 200 degrees wide and 135 degrees tall. When your eyes work together correctly, they give you depth perception and 3D vision. They also give you color vision.
Jul 17, 2023 · The proper function of the eye depends on its ability to receive and process energy from light in the environment, produce action potentials in specialized nerve cells, and relay those potentials through the optic nerve (cranial nerve II) to the brain.
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May 1, 2023 · Physical Properties of Vision. Vision cannot be discussed without knowing the physical properties of optics. The eye receives light that then is traduced into energy. That energy goes into the optic nerve as an action potential and travels to specific nuclei in the brain, where it is processed.
