Ciliary muscles are which Or Ciliary mucles are contractile structure whichA. Move cilia of some protozoansB. Keep valves of heart intactC. Change focal length of human eye and are found at joint of sclera and irisD. Cause eretion of human hairs in cold and are situated ini skin

Ciliary muscles are which Or Ciliary mucles are contractile structure

1.	Ciliary muscles are which Or Ciliary mucles are contractile structure whichA. Move cilia of some protozoansB. Keep valves of heart intactC. Change focal length of human eye and are found at joint of sclera and irisD. Cause eretion of human hairs in cold and are situated ini skin
Answer» Correct Answer - C Ciliary muscles by their contraction exerts tension tension over the zonule, the ligament which suspends the lens and stretch or relax the lens capsule. The lens has elasticity and hence change of tension on it changes the focal length of lens.

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Ciliary muscles are which Or Ciliary mucles are contractile structure whichA. Move cilia of some protozoansB. Keep valves of heart intactC. Change focal length of human eye and are found at joint of sclera and irisD. Cause eretion of human hairs in cold and are situated ini skin

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