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MCQs›Eye

Sensory System

Anatomy MCQs: Eye

A precision sensory organ that converts focused light into neural signals interpreted as vision.

5 questions

Eye

The essentials

Function
Captures and focuses light
Location
Within the bony orbit

The questions

  1. Which structure changes shape to focus on near and far objects?

    1. Cornea
    2. Iris
    3. Lens
    4. Sclera
    Show the answer

    Answer: Lens

    The lens is reshaped by the ciliary body's muscle to bring objects at different distances into focus.

  2. What controls how much light enters the eye?

    1. Cornea
    2. Iris
    3. Retina
    4. Vitreous
    Show the answer

    Answer: Iris

    The iris is the coloured ring of muscle whose opening — the pupil — widens or narrows.

  3. Which layer converts light into neural signals?

    1. Sclera
    2. Choroid
    3. Retina
    4. Cornea
    Show the answer

    Answer: Retina

    The retina is technically brain tissue, displaced outward during development.

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The same organ in 3D, to turn and dissect, with a score at the end.

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2 more questions in this set

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