Palpebra

Palpebra

Palpebra is the anatomical term for the eyelid, a thin fold of skin that covers and protects the eye. The palpebra consists of several layers, including the skin, muscle, and conjunctiva. The skin of the eyelid is the thinnest on the human body, allowing for flexibility and easy movement. Underneath the skin lies the orbicularis oculi muscle, which is responsible for the voluntary and involuntary blinking of the eye. The conjunctiva is a thin, transparent membrane that lines the inside of the eyelid and covers the white part of the eyeball. The eyelid has several essential functions, such as protecting the eye from foreign particles, distributing tears across the surface of the eye to keep it moist, and regulating the amount of light that enters the eye. The upper eyelid is larger and more mobile than the lower eyelid, and it contains a tarsal plate, a thick, fibrous tissue that gives the eyelid its shape and stability. The eyelid also has several glands, including the meibomian glands, which produce an oily substance that prevents the evaporation of tears, and the lacrimal glands, which produce tears to keep the eye lubricated.

eyelid, orbicularis oculi, conjunctiva, meibomian glands

— John Armstrong

CITATION : "John Armstrong. 'Palpebra.' Design+Encyclopedia. https://design-encyclopedia.com/define/palpebra?E=433030 (Accessed on October 14, 2026)"