Preview

Human Eye Anatomy

Good Essays
Open Document
Open Document
500 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Human Eye Anatomy
e, L. (2016). Human Eye Anatomy - Parts of the Eye Explained. [online] All About Vision.)
Lens: The lens is positioned behind the cornea. It has a nearly spherical structure that enables the eye to focus on an object either moving closer to or farther away from you, the lens focuses the light rays bouncing of the objects and onto the retina. It’s used to diffract light rays. It can only be damaged by a disease called”cataract”. The cataract causes clouding. lateral rectus muscle: This is one of six extraocular muscles that moves the eye all directions(left, right, up, down).
Sclera: It is the outer coat of the eyeball that surrounds the optic nerve at the back of the eye. It’s a leather-like tissue, that extends around the eye and give the eye its shape.
Choroid:The choroid is between the
…show more content…
The fovea gives us our central vision clearness. This gives us the ability to read, watch television and drive. Our peripheral retina has blood vessel attached to them, but the fovea does not have blood vessels attached to them.
Optic nerve: carries the electrical impulses from the retina to the visual cortex located in the brain
Optic nerve head: The optic nerve passes through the circular area, it is the eye’s blind spot
Vitreous body: It contains a transparent jelly substance called the vitreous humor.
Medial rectus muscle: This muscle moves the eye down,
Ciliary body: is between the iris and the choroid; these create the uvea. Its main functions is to produce aqueous humor, accommodation and to keep the lens in its proper position
Suspensory ligament zonules: is a membrane that keeps the eye’s lens in its correct position
Conjunctiva: it lines the visible part of the eye and in the inner surface of the eyelids
Iris:
Aqueous humor:
Pupil:is positioned behind the cornea and is within the anterior chamber. It is a round, dark center of the eye, which regulates the amount of light the retina receives by opening and closing the

You May Also Find These Documents Helpful

  • Better Essays

    • visual pathways in the brain – optic nerve- leaves each eye at optic disk; information reaches optic chiasm, where medial fibers cross to…

    • 2092 Words
    • 9 Pages
    Better Essays
  • Good Essays

    Pns Study Guide

    • 662 Words
    • 3 Pages

    • Labeling: Be able to label the following on a diagram (See PNS Ws): sclera, cornea, iris, pupil, optic nerve, lens,…

    • 662 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    The vitreous body fills the space behind the lens of the eye and contributes most to the glove-like appearance of the eyeball…

    • 776 Words
    • 5 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Hermann Grid Case Study

    • 478 Words
    • 2 Pages

    Our retina is partially composed of many small nerves (which function as receptors of light); these receptors are arranged in rows on the inside of…

    • 478 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Gross Anatomy Lab Report

    • 1660 Words
    • 7 Pages

    Orbicularis oculi|Sphincter of the eyelids, closes eyes for blinking, squinting and sleep; aids in flow of tears across eyes.|…

    • 1660 Words
    • 7 Pages
    Good Essays
  • Powerful Essays

    ATI Child Assessment

    • 25897 Words
    • 104 Pages

    conjunctiva: The delicate membrane that lines the eyelids and covers the exposed surface of the sclera (plural: conjunctivae); bulbar: the portion of the conjunctiva covering the cornea and front part of the sclera, appearing white because of the sclera behind it; palpebral: the portion of the conjunctiva lining the eyelids, appearing red because of its vascularity…

    • 25897 Words
    • 104 Pages
    Powerful Essays
  • Good Essays

    There is a point in the eye that were the optic nerve leaves the eye and there are no receptors there to communicate to the brain. Because of this there is a blind spot that does not transmit any images to the brain. (University of Phoenix, 2012).…

    • 974 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Cow Eye Dissection

    • 872 Words
    • 4 Pages

    1. Examine the outside of the eye. You should be able to find the sclera, the tough, outer covering of the eyeball. In humans, the sclera is the whites of the eyes, on a preserved cow eye; this area may appear dark brown. You should also be able to identify the fat and muscle surrounding the eye. Locate the covering over the front of the eye (the cornea). When the cow was alive, the cornea was clear. In your cow’s eye, the cornea may be cloudy or blue in colour.…

    • 872 Words
    • 4 Pages
    Good Essays
  • Satisfactory Essays

    Anesthesiologist

    • 581 Words
    • 2 Pages

    Ciliary body- the part of the vascular tunic of the eye that connects the choroid with the iris…

    • 581 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Compound Light Microscope

    • 901 Words
    • 4 Pages

    Iris diaphragm: used to regulate the intensity of light entering the lens system of the microscope…

    • 901 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Special Senses

    • 417 Words
    • 2 Pages

    When a fundascopic exam of the eye is performed, one looks at structures lying in the innermost aspect of the globe, collectively known as the eyegrounds: retina, retinal blood vessels, optic nerve head (disk), and to a limited degree, subjacent choroid. (Schneiderman, 1990) The benefit of being able to visualize the retinal blood vessels and optic nerve…

    • 417 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    Anatomy

    • 288 Words
    • 2 Pages

    * the first layer of the eye to be affected by inadequate tear production is the conjunctiva…

    • 288 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    For the optical system, the cornea gather light rays that pass into inferior of the eyes. The information such as light's brightness, hue/color or motion…

    • 534 Words
    • 2 Pages
    Good Essays
  • Good Essays

    anatomy

    • 1003 Words
    • 4 Pages

    The outermost fibrous layer (sclera and especially its cornea), which normally is continuously washed by tears…

    • 1003 Words
    • 4 Pages
    Good Essays
  • Powerful Essays

    Eye Dissection

    • 1568 Words
    • 7 Pages

    To locate and distinguish specific parts to an eye of a cow, in particular, its lens.…

    • 1568 Words
    • 7 Pages
    Powerful Essays