Asked by Sarah Pullium on Jul 29, 2024
Verified
The size of the pupil is adjusted by a doughnut-shaped ring of muscles called the
A) fovea.
B) cornea.
C) iris.
D) lens.
Pupil
The adjustable opening in the center of the eye that allows varying amounts of light to enter.
Doughnut-shaped
Having the shape of a doughnut; circular with a hole in the center.
- Explain the processes involved in the widening and narrowing of the pupil.
Verified Answer
KP
Khushboo PatelAug 01, 2024
Final Answer :
C
Explanation :
The iris is the doughnut-shaped ring of muscles that controls the size of the pupil. The fovea is a small depression in the retina, the cornea is the clear outer layer of the eye, and the lens is the transparent structure behind the iris that helps to focus light onto the retina.
Learning Objectives
- Explain the processes involved in the widening and narrowing of the pupil.