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  4. Assertion: Choroid layer is thick over the posterior two-third of the eye ball but it becomes thin in the anterior part Reason: Choroid layer lacks blood vessels. It forms ciliary body in the anterior part of the eye ball

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Q. Assertion : Choroid layer is thick over the posterior two-third of the eye ball but it becomes thin in the anterior part
Reason : Choroid layer lacks blood vessels. It forms ciliary body in the anterior part of the eye ball

Neural Control and Coordination

Solution:

The middle layer, choroid, contains many blood vessels and looks bluish in colour. The choroid layer is thin over the posterior two-third of the eye ball, but it becomes thick in the anterior part to form the ciliary body