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Iris Choroid Central retinal artery and vein Cornea Optic nerve Vitreous chamber Central retinal artery and vein Ciliary body Lens Conjunctiva Retina Cornea Iris Lens

Iris Choroid Central retinal artery and vein Cornea Optic nerve Vitreous chamber Central retinal artery and vein Ciliary body Lens Conjunctiva Retina Cornea Iris Lens

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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**Anatomy of the Human Eye** This diagram provides a detailed cross-sectional view of the human eye, illustrating various key components essential for vision. Below is an explanation of each labeled part: 1. **Iris**: The colored part of the eye surrounding the pupil, which controls the size of the pupil and thus the amount of light that enters the eye. 2. **Cornea**: The transparent, dome-shaped surface that covers the front of the eye. It helps to focus incoming light. 3. **Vitreous Chamber**: The large area behind the lens, filled with a clear gel called the vitreous humor. This space helps maintain the eye's shape. 4. **Ciliary Body**: Located behind the iris, the ciliary body produces aqueous humor (the fluid in the eye) and contains the ciliary muscle, which changes the shape of the lens for focusing. 5. **Conjunctiva**: A thin, transparent tissue covering the white part of the eye (sclera) and the inner eyelids. It helps lubricate the eye by producing mucus and tears. 6. **Choroid**: A layer filled with blood vessels that nourish the back of the eye. It lies between the retina and the sclera. 7. **Optic Nerve**: The nerve that transmits visual information from the retina to the brain. 8. **Central Retinal Artery and Vein**: Blood vessels that supply and drain blood from the retina. 9. **Lens**: A transparent, flexible structure behind the iris that focuses light onto the retina. 10. **Retina**: The light-sensitive layer of tissue at the back of the eye that captures light images and sends them to the brain via the optic nerve. Understanding the anatomy of the eye is crucial for comprehending how vision works and recognizing various vision-related issues and their specific locations within the eye structure.
Transcribed Image Text:**Anatomy of the Human Eye** This diagram provides a detailed cross-sectional view of the human eye, illustrating various key components essential for vision. Below is an explanation of each labeled part: 1. **Iris**: The colored part of the eye surrounding the pupil, which controls the size of the pupil and thus the amount of light that enters the eye. 2. **Cornea**: The transparent, dome-shaped surface that covers the front of the eye. It helps to focus incoming light. 3. **Vitreous Chamber**: The large area behind the lens, filled with a clear gel called the vitreous humor. This space helps maintain the eye's shape. 4. **Ciliary Body**: Located behind the iris, the ciliary body produces aqueous humor (the fluid in the eye) and contains the ciliary muscle, which changes the shape of the lens for focusing. 5. **Conjunctiva**: A thin, transparent tissue covering the white part of the eye (sclera) and the inner eyelids. It helps lubricate the eye by producing mucus and tears. 6. **Choroid**: A layer filled with blood vessels that nourish the back of the eye. It lies between the retina and the sclera. 7. **Optic Nerve**: The nerve that transmits visual information from the retina to the brain. 8. **Central Retinal Artery and Vein**: Blood vessels that supply and drain blood from the retina. 9. **Lens**: A transparent, flexible structure behind the iris that focuses light onto the retina. 10. **Retina**: The light-sensitive layer of tissue at the back of the eye that captures light images and sends them to the brain via the optic nerve. Understanding the anatomy of the eye is crucial for comprehending how vision works and recognizing various vision-related issues and their specific locations within the eye structure.
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