nictitating membrane

Is Nictitating Membrane Present In Humans?

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Is Nictitating Membrane Present In Humans? Nictitating Membrane The plica semilunaris is a fold of conjunctiva at the inner corner of the human eye. … In some species, the membrane is sufficiently transparent so as to enable vision when underground or underwater. Why do humans not have a nictitating membrane? But in humans, it doesn’t

What Is The Purpose Of The Nictitating Membrane?

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What Is The Purpose Of The Nictitating Membrane? The nictitating membrane is a transparent or translucent third eyelid present in some animals that can be drawn across the eye for protection and to moisten it while maintaining visibility. What may be the purpose of nictitating membrane in frog? Frogs’ nictitating membranes provide a protective layer