levator palpebrae muscle

眼瞼挙筋

WordNet

1. make ones way by force; "He muscled his way into the office"
2. animal tissue consisting predominantly of contractile cells (同)muscular_tissue
3. one of the contractile organs of the body (同)musculus
4. authority or power or force (especially when used in a coercive way); "the senators used their muscle to get the party leader to resign"
5. a muscle that serves to lift some body part (as the eyelid or lip)

PrepTutorEJDIC

1. 〈U〉(動物体の組織としての)『筋肉』,筋(きん);〈C〉(体の各部を動かす)筋肉 / 〈U〉力,(特に)筋力,腕力 / 《俗に》(…に)強引に割り込む《+『in on』(『into, through』)+『名』》
2. 筋肉の,筋力のある / 力ずくの

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/05/02 19:35:00」(JST)

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[Wiki en表示]

Levator muscle of upper eyelid
Rectus muscles: 2 = superior, 3 = inferior, 4 = medial, 5 = lateral Oblique muscles: 6 = superior, 8 = inferior Other muscle: 9 = levator palpebrae superioris Other structures: 1 = Annulus of Zinn, 7 = Trochlea, 10 = Superior tarsus, 11 = Sclera, 12 = Optic nerve
Sagittal section of right orbital cavity.
Details
Origin	Sphenoid bone
Insertion	Tarsal plate, upper eyelid
Artery	Ophthalmic artery, superior ophthalmic vein
Nerve	Oculomotor nerve
Actions	Retracts / elevates eyelid
Antagonist	Orbicularis oculi muscle
Identifiers
Latin	Musculus levator palpebrae superioris
Dorlands /Elsevier	m_22/12549616
TA	A15.2.07.020
FMA	49041
Anatomical terms of muscle [edit on Wikidata]

The levator palpebrae superioris (Latin for: elevating muscle of upper eyelid) is the muscle in the orbit that elevates the superior (upper) eyelid.

Structure

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. This portion inserts on the skin of the upper eyelid, as well as the superior tarsal plate. It is a skeletal muscle. The superior tarsal muscle, a smooth muscle, is attached to the levator palpebrae superioris, and inserts on the superior tarsal plate as well.

Innervation

As with most of the muscles of the orbit, it is innervated by the superior division of the oculomotor nerve (Cranial Nerve III). It originates from a single central nucleus which provides innervation bilaterally to both LPS muscles. Due to this a single lesion in the central nucleus can cause bilateral ptosis. This is why, when one turns one's eye upward, the eyelid tends to rise with it. An adjoining smooth muscle, the superior tarsal muscle, is sympathetically innervated and is occasionally considered to be part of the levator palpebrae superioris.

Function

The levator palpebrae superioris muscle elevates and retracts the upper eyelid.

Clinical signifiance

Damage to this muscle, or its innervation, can cause ptosis, the drooping of the eyelid. Ptosis can also be caused by damage to the adjoining superior tarsal muscle, or its sympathetic innervation. Such damage to the sympathetic supply occurs in Horner's syndrome, and presents as a partial ptosis.

Additional images

• The sinuses at the base of the skull.

• Nerves of the orbit. Seen from above.

• Dissection showing origins of right ocular muscles, and nerves entering by the superior orbital fissure.

• The right eye in sagittal section, showing the fascia bulbi (semidiagrammatic).

• Sagittal section through the upper eyelid.

• Levator palpebrae superioris muscle

• Levator palpebrae superioris muscle

• Extrinsic eye muscle. Nerves of orbita. Deep dissection.

• Extrinsic eye muscle. Nerves of orbita. Deep dissection.

See also

This article uses anatomical terminology; for an overview, see Anatomical terminology.

• Blepharospasm
• Ptosis
• Superior tarsal muscle

References

External links

• -1979318192 at GPnotebook
• Anatomy figure: 29:01-01 at Human Anatomy Online, SUNY Downstate Medical Center
• lesson3 at The Anatomy Lesson by Wesley Norman (Georgetown University) (orbit2)

UpToDate Contents

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English Journal

• Superior rectus underaction following botulinum toxin injection to induce protective upper eye lid ptosis - a comparative study of two techniques.

• Sadiq SA1, Dharmasena A.
• Strabismus.Strabismus.2014 Sep;22(3):111-4. doi: 10.3109/09273972.2014.932394. Epub 2014 Jul 9.
• Abstract Background: Botulinum toxin A (BTXA) injection to the levator palpebrae superioris muscle to induce a protective ptosis can adversely cause reduced upgaze due to diffusion of BTXA to the superior rectus muscle.PURPOSE: To compare the incidence of reduced upgaze in trascutaneous versus trans
• PMID 25005249

• Improvement in Levator Function After Anterior Levator Resection for the Treatment of Congenital Ptosis.

• Göncü T1, Cakmak S, Akal A, Karaismailoğlu E.
• Ophthalmic plastic and reconstructive surgery.Ophthal Plast Reconstr Surg.2014 Aug 7. [Epub ahead of print]
• PURPOSE:: To evaluate the surgical outcome of levator resection in congenital ptosis, and to assess the change in levator function (LF) after surgery, as well as its effect on surgical outcomes.METHODS:: The charts of patients who underwent an anterior levator resection for congenital ptosis between
• PMID 25105520

• Anatomical Characteristics and Surgical Treatment of Bilateral Congenital Upper Eyelid Entropion in an Infant With Neonatal Progeroid Syndrome.

• Yazc B1, Toka F, Cömez AT.
• Ophthalmic plastic and reconstructive surgery.Ophthal Plast Reconstr Surg.2014 May 6. [Epub ahead of print]
• Neonatal progeroid syndrome (NPS) is a rare, autosomal recessive disorder characterized by an aged face, wrinkled skin, decreased subcutaneous fat, and neonatal teeth. The authors describe herein a 2-month-old infant with NPS who underwent eyelid surgery for bilateral upper eyelid entropion and stro
• PMID 24807800

Japanese Journal

• 眼瞼痙攣・片側顔面痙攣に対するボツリヌス毒素施注の要領

• 大澤 美貴雄
• 東京女子医科大学雑誌 84(E1), E17-E23, 2014-01-31
• ボツリヌス毒素療法は、眼瞼痙攣と関連疾患の開眼失行、および片側顔面痙攣と関連疾患の顔面連合運動の第一選択治療である。本稿で最初に、これらの疾患で本治療の標的になる顔面筋の始点と終点について記述した。次に標的筋、すなわち前頭筋、鼻根筋、皺眉筋、眼輪筋、眼瞼部、鼻筋、小頬骨筋、大頬骨筋、笑筋、口輪筋、オトガイ筋、広頸筋、それぞれの同定法を紹介した。副作用を未然に防止する為に、避けるべき標的筋の部位につ …
• NAID 110009752549

• Clinico-anatomical Analysis of the Fibers to the Inferior Rectus Muscle in the Oculomotor Fascicles

• Tsuda Hiromasa,Tanaka Kozue
• Internal Medicine 51(15), 2031-2034, 2012
• … Patient 1 was a 72-year-old man who developed left-sided palsy of the inferior rectus muscle (IR), medial rectus muscle (MR), superior rectus muscle (SR), inferior oblique muscle (IO), and levator palpebrae superioris (LP) due to infarction of the left paramedian thalamic artery. …
• NAID 130002062276

• Intermuscular Transverse Ligament Goes under the Orbital Part of the Lacrimal Gland and Attaches to the Lateral Orbital Wall

• KAKIZAKI Hirohiko,ZAKO Masahiro,NAKANO Takashi,ASAMOTO Ken,MITO Hidenori,IWAKI Masayoshi
• Japanese journal of ophthalmology 49(6), 542-543, 2005-11-01
• NAID 10019219114

Related Links

• Levator palpebrae muscle - definition of Levator palpebrae ...

le·va·tor pal·pe·brae su·pe·ri·o·ris (mus·cle) [TA] extraocular muscle in orbit; origin, orbital surface of the lesser wing of the sphenoid, above and anterior to the optic canal; insertion, skin of eyelid, tarsal plate, and orbital walls, by ...

• levator palpebrae superioris muscle (anatomy) - General ...

Levator palpebrae superioris is one of the muscles of the eyelids. It arises from the inferior surface of the lesser wing of the sphenoid bone. From this point, it diverges anteriorly to insert into the: skin of the upper eyelid superior tarsal ...

Related Pictures

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★リンクテーブル★

リンク元	「眼瞼挙筋」
関連記事	「palpebra」「muscle」

「眼瞼挙筋」

　　[★]

英

levator palpebrae muscle、levator muscle

関

上眼瞼挙筋

• 眼瞼挙筋は眼窩内では眼窩尖端のZinn総腱輪から起始。上直筋の上方を前方に走行し眼瞼に入る。上瞼板筋(Muller筋)を分岐した後、眼瞼挙筋腱膜となり眼窩隔膜と癒合し瞼板の頭側面に停止。

「palpebra」

　　[★]

眼瞼

関

eyelid、palpebral

「muscle」

　　[★]

• n.

• 筋肉