University:
Davenport University
Course:
BIOL 111 | Organisms and Populations
Academic year:

2023
Views:

299

Pages:

2
Author:

garciavelascogr10

C o w E y e Di s s e c ti o n W or k s h e et 1. Name three structures that help focus the light rays entering the eye. a. _____________________ Cornea b. _____________________ Lens c. _____________________ Vireous Humour 2. Name the three layers that make up the wall of the eyeball. a. _____________________ Sclera Choroid Coat b. _____________________ Retina c. _____________________ 3. Match the following parts of the eye to their function: (optic nerve, sclera, iris, retina, lens, pupil, vitreous humour, aqueous humour, choroid) _______________ Retima Contains sensory receptors for vision Iris _______________ The coloured portion of the eye. Lens _______________ This structure changes shape to focus light on the retina Pupil _______________ The opening in the iris through which light passes Vitreous Humour Helps the eyeball keep its round shape and prevents it from collapsing _______________ Sclera _______________ Outer layer of the eye. Protects the eye and helps it keep its shape Optic Nerve _______________ Cord at the back of the eyeball. Carries impulses from the eye to the brain Aqueous Humour _______________ Fills space between the lens and cornea. Plays a part in focussing light rays Choroid Coat _______________ Dark coloured layer underneath the retina. Contains blood vessels which supply nutrients and oxygen to the eye. 4. Use the picture to name the parts of the eye. Cornea 1. ______________________________ Sclera 2. ______________________________ Optic Nerve 3. ______________________________ 4. ______________________________ Iris Pupil 5. ______________________________ Choroid coat 6. ______________________________ Retina 7. ______________________________ 8. ______________________________ Lens Vitreous humor 9. ______________________________

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