The portion of the conjunctiva, upon the sclera, that is loosely connected to the bulb of the eye is called ______.

Correct option is B

The bulbar conjunctiva is the part of the conjunctiva that covers the sclera (the white of the eye) and is loosely attached to the eyeball. This allows for eye movement without restriction. It is a thin, transparent membrane that helps in lubrication and protection of the eye by producing mucus and tears.
Explanation of each option:
· (a) Palpebral Conjunctiva – Incorrect. The palpebral conjunctiva is the inner lining of the eyelids that extends to the fornix. It is tightly attached to the tarsal plates of the eyelids and does not cover the sclera.
· (b) Bulbar Conjunctiva – Correct answer. It is the thin membrane covering the sclera, allowing for smooth movement of the eyeball within the socket. It plays a key role in eye protection and lubrication.
· (c) Fornicular Conjunctiva – Incorrect. The fornix is the junction between the palpebral and bulbar conjunctiva, creating a flexible transition that allows free movement of the eye.
· (d) Plica Semilunaris – Incorrect. This is a small crescent-shaped fold of conjunctiva located in the medial canthus of the eye. It is a vestigial remnant of the nictitating membrane found in some animals (like birds and reptiles) but does not cover the sclera.