Eye Anatomy Quiz
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Questions and Answers

What is the outermost layer of the eyeball called?

Sclera

What structure in the eye controls the size of the pupil?

Iris

What is the role of the lens in the eyeball?

Focuses light onto the retina

The cornea is a non-transparent part of the fibrous tunic.

<p>False</p> Signup and view all the answers

The _______ carries visual signals to the brain.

<p>Optic Nerve</p> Signup and view all the answers

Which of the following is NOT a component of the eyeball?

<p>Aorta</p> Signup and view all the answers

What is the membrane covering the sclera and the inside of the eyelids called?

<p>Conjunctiva</p> Signup and view all the answers

Study Notes

Eye Anatomy

  • The eyeball is approximately 2.5 cm in diameter.
  • The fibrous tunic is composed of the sclera and cornea.
  • The vascular tunic is composed of the choroid, ciliary body, and iris.
  • The retina is the innermost layer of the eye.
  • The choroid is the middle layer of the eye.
  • The optic nerve carries visual information to the brain.
  • The lens is a biconvex structure that focuses light onto the retina.
  • The pupil is the opening in the center of the iris that controls the amount of light entering the eye.
  • The iris regulates the size of the pupil.
  • The ciliary body adjusts the shape of the lens for near or far vision.
  • Light enters the eye through the cornea and pupil.
  • The lens focuses the light onto the retina, where specialized cells convert the light into nerve signals.
  • The optic nerve transmits these signals to the brain.
  • Light from the pupil passes through the cornea to the lens.
  • The lens focuses the light.
  • The light is focused on the retina which converts the light into nerve signals.
  • The optic nerve carries the nerve signals to the brain.

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Description

Test your knowledge on the anatomy of the eye with this quiz. Explore the different layers and structures of the eyeball, including the sclera, cornea, retina, and optic nerve. This quiz will help you understand how the eye functions and the role each part plays in vision.

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