See Also: plica semilunaris of eye(medicine)
plica semilunaris(medicine)
plica semilunaris conjunctivae(medicine)
plica semilunaris of colon(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
linea semilunaris(medicine)
fasciculus semilunaris(medicine)
hiatus semilunaris(medicine)
valvula semilunaris(medicine)
lobulus semilunaris superior(medicine)

plica semilunaris of eye (medicine)


plica semilunaris of eye -->
plica semilunaris conjunctivae


The semilunar fold formed by the palpebral conjunctiva at the medial angle of the eye, a fold of the conjunctival mucous membrane found in many animals; normally partially hidden in the medial canthus of the eye when at rest, it may be extended to cover part or all of the cornea in a winking-like action to clean the cornea, as in birds.

Synonym: membrana nictitans, nictitating membrane, palpebra III, palpebra tertia, third eyelid.

Synonym: plica lunata, plica semilunaris of eye, semilunar conjunctival fold.