Eye Anatomy Quiz
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Questions and Answers

What is the function of the conjunctiva?

  • To produce tears
  • To focus light waves on the retina
  • To regulate the amount of light entering the eye
  • To reduce friction between the eyeball and the eyelid (correct)

    • What is the function of the eyelid?

  • To focus light waves on the retina
  • To produce tears
  • To regulate the amount of light entering the eye
  • To protect the eye from foreign objects (correct)

    • What is the function of the cornea?

  • To protect the eye from foreign objects
  • To focus light waves on the retina
  • To allow light waves to enter the eye (correct)
  • To regulate the amount of light entering the eye

    • What is the function of the iris?

    <p>To regulate the amount of light entering the eye</p> Signup and view all the answers

    What is the function of the ciliary body?

    <p>To increase and decrease the diameter of the lens</p> Signup and view all the answers

    What is the function of the retina?

    <p>To contain photoreceptor cells</p> Signup and view all the answers

    What is the function of the optic nerve?

    <p>To transmit information from the retina to the brain</p> Signup and view all the answers

    Study Notes

    Eye Structure and Function

    • The eyelid, composed of skin, muscles, and lashes, protects the eye from foreign objects through the blinking reflex and moves tears along the surface of the eyeball to keep it moist.

    Conjunctiva

    • A thin membrane lining the insides of the eyelids and surface of the eyeball, reducing friction between the eyeball and eyelid during blinking.

    Cornea

    • A colorless, transparent structure allowing light waves to enter the eye.

    Sclera

    • The white part of the eye, providing protection and shape to the eye.

    Iris

    • The colored portion of the eye, containing two sets of muscles that regulate the size of the pupil to control the amount of light entering the eye.

    Pupil

    • An opening in the center of the iris, serving as a passageway for light.

    Ciliary Body

    • Composed of ciliary muscles, responsible for increasing and decreasing the diameter of the lens.

    Lens

    • A transparent, disc-shaped structure that focuses light waves on the retina.

    Retina

    • The innermost layer of the eyeball, containing photoreceptor cells.

    Optic Nerve

    • Responsible for taking information from the retina to the brain.

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    Description

    Test your knowledge of the different parts of the eye, including the eyelid, conjunctiva, cornea, and sclera. Learn about their functions and how they work together to keep the eye healthy.

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