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, …

The levator palpebrae superioris originates from inferior surface of the lesser wing of the sphenoid bone, just above the optic foramen. It broadens and decreases in thickness (becomes thinner) and becomes the levator aponeurosis .

2020年10月25日 · The levator palpebrae superioris and superior tarsal muscles both act to open the eyelid. They are only present in the upper eyelid.

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 the two movable folds covering 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 ...

2024年5月7日 · The levator palpebrae superioris is a triangular muscle that elevates and retracts the upper eyelid (see Image. Orbital Muscles). This muscle has an abundant blood supply mainly provided by the ophthalmic and supraorbital arteries, …

2023年2月18日 · The layer of striated muscles in the upper eyelid contains levator palpebrae superioris muscle (LPS) which is supplied by a branch of the oculomotor nerve. The main function of LPS is to raise the upper eyelid.

上睑提肌（levator palpebrae?superioris）是2014年 全国科学技术名词审定委员会 公布的人体解剖学名词，出自《人体解剖学名词》第二版。 位于上直肌的上方、起自视神经管前上方的骨面、止于上睑的肌束。 作用为提上睑和开大睑裂,由动眼神经支配。 [1] 《人体解剖学名词》第二版. 上睑提肌（levator palpebrae?superioris）是2014年全国科学技术名词审定委员会公布的人体解剖学名词，出自《人体解剖学名词》第二版。