Eyelid - Wikipedia
WebAn eyelid ( / ˈaɪ.lɪd / EYE-lid) is a thin fold of skin that covers and protects an eye. The levator palpebrae superioris muscle retracts the eyelid, exposing the cornea to the outside, giving vision. This can be either voluntarily or involuntarily. "Palpebral" (and "blepharal") means relating to the eyelids.
Eyelid: Anatomy, structure and function | Kenhub
WebOct 30, 2023 · Latin: Palpebra(e) Definition: The eyelids are thin mobile folds of soft tissue covering and protecting the anterior surface of the eyeball. Function: Regulating light reaching the eye, maintaining and distributing the eye's tear film during blinking and maintaining tear flow, by acting on the conjunctival and lacrimal sacs.
Anatomy, Head and Neck: Eyelid - StatPearls - NCBI Bookshelf
WebAug 14, 2023 · The orbicularis oculi muscle is a large, thin, circular muscle that is divided into pretarsal, preseptal, and orbital segments. The pretarsal and preseptal segments are responsible for involuntary eyelid closure (blinking). The orbital segment is primarily responsible for voluntary/forced eyelid closure. Retractors.
Eyelid - American Academy of Ophthalmology
WebPárpado. Published Aug. 31, 2017. An eyelid is a fold of skin that closes over the eye to protect it. There are upper and lower eyelids. Many things can affect the eyelids or are related to the eyelid.
Eyelid Anatomy — Ophthalmology Review
WebJul 11, 2019 · Palpebral Fissure. The palpebral fissure refers to the normal exposed area between upper and lower eyelids. The palpebral fissure vertical height ( PFH) is measured between the margin of the lower eyelid to the margin of the upper eyelid. The normal palpebral fissure height is 8-11 mm. This is a key measurement that you need when …
The Eyelids - Conjunctiva - Muscles - TeachMeAnatomy
WebOct 25, 2020 · The eyelids are split into upper and lower portions, which meet at the medial and lateral canthi of the eye. The opening between the two eyelids is called the palpebral aperture or opening. In this article, we shall look at the anatomy of the eyelids – their layers, vasculature and innervation. Fig 1 – The upper and lower eyelid.
Eyelid Anatomy: Overview, Surface Anatomy, Skin and ... - Medscape
WebThe levator palpebra superioris (LPS) arises at the orbital apex from the undersurface of the lesser wing of the sphenoid bone. The levator muscle and superior rectus muscle share a developmental origin and are connected by fibrous attachments.
Eyelids - e-Anatomy - IMAIOS
WebThe eyelids (palpebræ) are two thin, movable folds, placed in front of the eye, protecting it from injury by their closure. The upper eyelid is the larger, and the more movable of the two, and is furnished with an elevator muscle, the Levator palpebræ superioris. When the eyelids are open, an elliptical space, the palpebral fissure (rima palpebrarum), is left between …
Palpebra | definition of palpebra by Medical dictionary
WebOne of two movable folds that cover the front of the eyeball when closed; formed of a fibrous core (tarsal plate) and the palpebral portions of the orbicularis oculi muscle covered with skin on the superficial, anterior surface and lined with conjunctiva on the deep, posterior surface; rapid contraction of the contained muscle fibers produces ...
Eye anatomy: Muscles, arteries, nerves and lacrimal gland - Kenhub
WebNov 3, 2023 · Eye anatomy is a fascinating topic that covers the structure and function of the organs that enable us to see the world. In this web page, you will learn about the muscles, arteries, nerves and lacrimal gland of the eye, as well as their clinical relevance. Whether you are a student, a teacher, or a curious person, this web page will help you …
- Some results have been removed
Skip to content