Question:
The main function of the choroid layer in the eyeball is ____.
The main function of the choroid layer in the eyeball is ____.
Show Hint
The choroid is a vascular coat lying outside the retina.
Updated On: Nov 12, 2026
- Formation of image
- Supply nutrition and oxygen to the retina
- Control of eye movement
- Protection of cornea
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept
The eyeball wall has the sclera, choroid and retina.
Step 2: Choroid role
The choroid is full of blood vessels and pigment.\nIts capillaries bring oxygen and nutrients to the retina.
Step 3: Eliminate others
Image formation is by lens and retina, and eye movement by extrinsic muscles.
Final Answer:
The choroid supplies nutrition and oxygen to the retina. \[ \boxed{\text{(B) }\text{Supply nutrition and oxygen to the retina}} \]
The eyeball wall has the sclera, choroid and retina.
Step 2: Choroid role
The choroid is full of blood vessels and pigment.\nIts capillaries bring oxygen and nutrients to the retina.
Step 3: Eliminate others
Image formation is by lens and retina, and eye movement by extrinsic muscles.
Final Answer:
The choroid supplies nutrition and oxygen to the retina. \[ \boxed{\text{(B) }\text{Supply nutrition and oxygen to the retina}} \]
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