conjunctiva

1. A transparent lubricating mucous membrane that covers the eyeball and the under surface of the eyelid (synset 105322645)
   is a type of: mucosa, mucous membrane - mucus-secreting membrane lining all body cavities or passages that communicate with the exterior
   subtypes:

   • bulbar conjunctiva, conjunctival layer of bulb, tunica conjunctiva bulbi - the part of the conjunctiva covering the anterior face of the sclera and the surface epithelium of the cornea
   • conjunctival layer of eyelids, palpebra conjunctiva, tunica conjunctiva palpebrarum - the part of the conjunctiva lining the posterior surface of the eyelids; continuous with the bulbar conjunctiva
   • pinguecula - a slightly elevated elastic tissue deposit in the conjunctiva that may extend to the cornea but does not cover it
   • pterygium - either of two thickened triangular layers of conjunctiva extending from the nasal edge of the eye to the cornea; it arises from irritation of the pinguecula
   is a part of:

   • eye, oculus, optic - the organ of sight
   • eyelid, lid, palpebra - either of two folds of skin that can be moved to cover or open the eye

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