Is levator Palpebrae Superioris parasympathetic?
It contains a GSE component for innervation of the extraocular and levator palpebrae superioris muscles and a GVE parasympathetic component for innervation of the ganglion that in turn innervates the intraocular muscles.
What nerve controls the levator Palpebrae Superioris?
It receives innervation by the superior branch of the oculomotor nerve (cranial nerve III). Problems with the levator palpebrae superioris function or innervation will result in upper eyelid ptosis.
Is levator Palpebrae Superioris sympathetic?
Innervation. Levator palpebrae superioris receives somatic motor innervation from the superior division of oculomotor nerve (CN III). Superior tarsal muscle receives sympathetic innervation from the carotid plexus whose fibers join the oculomotor nerve while it passes through the cavernous sinus.
What nerve innervates the levator muscle of the eyelid?
The oculomotor nerve (CNIII) innervates the main upper eyelid retractor, the levator palpebrae superiorus, via its superior branch.
What is the function of the Palpebrae?
The function of the levator palpebrae superioris muscle is to raise the upper eyelid and to maintain the upper eyelid position. The levator palpebrae superioris muscle origin is the periosteum of the lesser wing of the sphenoid bone, superior to the optic foramen.
What is the role of the levator Palpebrae Superioris?
Where does the levator Palpebrae Superioris originate?
sphenoid bone
The levator palpebrae superioris muscle origin is the periosteum of the lesser wing of the sphenoid bone, superior to the optic foramen. The muscle travels anteriorly along the superior aspect of the orbit superior to the superior rectus muscle.
What is parasympathetic neural system?
The parasympathetic nervous system predominates in quiet “rest and digest” conditions while the sympathetic nervous system drives the “fight or flight” response in stressful situations. The main purpose of the PNS is to conserve energy to be used later and to regulate bodily functions like digestion and urination.[1]
What type of muscle is levator Palpebrae Superioris?
The levator palpebrae superioris (Latin: elevating muscle of upper eyelid) is the muscle in the orbit that elevates the upper eyelid….Levator palpebrae superioris muscle.
| Levator palpebrae superioris | |
|---|---|
| Nerve | Superior division of oculomotor nerve |
| Actions | Elevation of upper eyelid |
| Antagonist | Palpebral part of orbicularis oculi muscle |