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.

2022年12月22日 · There are seven extraocular muscles – the levator palpebrae superioris, superior rectus, inferior rectus, medial rectus, lateral rectus, inferior oblique and superior oblique. Functionally, they can be divided into two groups: Responsible for eye movement – Recti and oblique muscles.

2023年11月3日 · Levator palpebrae superioris is a triangular muscle that extends along the roof of the orbit, from the apex of orbit to the superior eyelid. It originates with a short and narrow tendon from the inferior aspect of the lesser wing of sphenoid bone, …

2020年10月25日 · They offer protection from excessive light or injury, and maintain lubrication by distributing tears over the surface of the eyeball. 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.

2019年7月11日 · 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 assessing for ptosis.

2023年10月30日 · The eye has two palpebral fissures, horizontal and vertical, which stand for the normal exposed area between the superior and inferior eyelids. The elliptical opening between them is known as the palpebral aperture. The eyelids are divided into three anatomical lamellae:

One 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 bl...

2023年2月18日 · The medical term for eyelids is palpebrae (plural of palpebra). Any medical words related to eyelid has a prefix palpebra-, e.g., palpebral fissure, levator palpebrae superioris, palpebral glands. Palpebra or Eyelid Anatomy

2025年1月22日 · The levator palpebrae superioris is anatomically related to several extraocular muscles within the orbit, most notably the superior rectus muscle. The levator palpebrae superioris runs directly above the superior rectus, and …

The levator palpebrae superioris is the muscle in the orbit that elevates the superior (upper) eyelid. The levator palpebrae superioris originates on the lesser wing of the sphenoid bone, just above the optic foramen. It broadens and becomes the levator aponeurosis.