Asked by M Luisa TS Nen on May 04, 2024
Verified
The ____ is a wedge-shaped thickening in the middle layer of the eyeball that controls the shape of the lens.
A) sclera
B) iris
C) choroid
D) ciliary body
E) retina
Ciliary Body
The ciliary body is a part of the eye that includes the ciliary muscle, which controls the shape of the lens, and the ciliary epithelium, which produces the aqueous humor.
Choroid
A layer of the eye between the retina and the sclera, rich in blood vessels, providing oxygen and nutrients to the inner parts of the eye.
Lens
A piece of transparent material, typically glass or plastic, that refracts or focuses light rays, used in glasses and cameras.
- Describe the anatomical formations within the eye and their functions.
Verified Answer
RM
Ronit MansukhaniMay 07, 2024
Final Answer :
D
Explanation :
The ciliary body is responsible for controlling the shape of the lens, which is essential for focusing light on the retina. It achieves this through the contraction and relaxation of ciliary muscles, adjusting the lens's curvature to focus on objects at various distances.
Learning Objectives
- Describe the anatomical formations within the eye and their functions.