Anatomy of the Eyeball The eyeball has three layers sandwiched together The outer white fibrous...
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Anatomy of the Eyeball The eyeball has three layers sandwiched together The outer white fibrous layer, the sclera The middle blood rich layer, the choroid The inner colored (pigmented) layer, the retina. The inside of the eyeball is filled with a clear jelly like substance called vitreous humor. This, and the fibrous white sclera help to keep the shape of your eyeball. The blood vessels that run through the choroid carry food and oxygen to the cells of the eye. The retina lines the inside of the eyeball. This is the nerve layer of the eye. The cells of the retina react to light. They send messages to the brain through the optic nerve, making it possible for you to see.
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Transcript of Anatomy of the Eyeball The eyeball has three layers sandwiched together The outer white fibrous...
Anatomy of the Eyeball
The eyeball has three layers sandwiched together
The outer white fibrous layer, the sclera The middle blood rich layer, the choroid
The inner colored (pigmented) layer, the retina.The inside of the eyeball is filled with a clear jelly like substance
called vitreous humor. This, and the fibrous white sclera help to keep the shape of your eyeball.
The blood vessels that run through the choroid carry food and oxygen
to the cells of the eye.
The retina lines the inside of the eyeball. This is the nerve layer of the eye. The cells of the retina react to light. They send messages to the brain through the optic nerve, making it possible for you to
see.
Retina-The light-sensitive tissue lining at the back of the eye.
Lens-A clear part of the eye behind the iris that helps to focus light, or an image, on the retina.
Iris-The colored part of the eye that regulates the amount of light entering the eye.
Cornea-The clear outer part of the eye’s focusing system located at the front of the eye.
Pupil-The opening at the center of the iris.
Vitreous gel-A clear gel that fills the inside of the eye.
Optic nerve-A bundle of more than one million nerve fibers that carries visual messages from the retina to the brain.
Macula -The smallest area of the retina that gives central vision.
Fovea-The center of the macula and gives the sharpest vision.
Retina
Lens
Cornea
Vitreous gel
Fovea
Iris
Macula
Pupil
Optic nerve
Overview:
This is a science lesson for grades 6-10, about the basic anatomy of the eyeball.
Directions:
Screen one: Introduction…Use pen mode and pen styles to highlight, circle and bring attention to certain key words or phrases…save…print…give to students to bring home with homework or load onto classroom website.
Screen two: Show students the eyeball anatomy website. Use pen mode to take notes…save…print…give to students to bring home with homework or load onto classroom website.
Screen three: Full diagram of eyeball, vocabulary and definitions; give students a blank diagram (print screen 6 for diagram) and have them fill in throughout class discussion.
Screen four: Use pen mode and have students come to board to write in correct vocabulary and match with correct line.
Screen five: Show movie of the basic anatomy of the eyeball. Stop move and use pen mode to highlight certain parts of move. Have students take notes.
Screen six: Use pen mode and have students come to board to label eyeball parts.…save…print…give to students to bring home with homework or load onto classroom website.
