外側直筋
WordNet
- lying away from the median and sagittal plane of a body; "lateral lemniscus"
- situated at or extending to the side; "the lateral branches of a tree"; "shot out sidelong boughs"- Tennyson (同)sidelong
- comparative of the adverb `late; "he stayed later than you did"
- coming at a subsequent time or stage; "without ulterior argument"; "the mood posterior to" (同)ulterior, posterior
- any of various straight muscles
PrepTutorEJDIC
- 横の,側面の;横からの / (音声が)側音の / 側面,(道路の)側溝(そっこう) / 側音(英語の[1]など)
- 《補語にのみ用いて》(人などが)(…するのが)『もっと遅い』《+『in』+『名』(do『ing』)》 / (時刻・時期が)『もっと遅い』,もっと後の / 後で,のちほど / (lateの比較級)(定刻・予定時間・他の人(物))より遅れて,遅く
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/11/14 11:00:51」(JST)
[Wiki en表示]
| Lateral rectus |
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Lateral rectus muscle: is shown in this superior view of the eye. The lateral rectus is on the right side of the image.
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Figure showing the mode of innervation of the Recti medialis and lateralis of the eye.
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| Latin |
musculus rectus lateralis bulbi |
| Gray's |
p.1022 |
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Origin
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annulus of Zinn at the orbital apex |
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Insertion
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7 mm temporal to the limbus |
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Nerve
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abducens nerve |
| Actions |
abducts the eyeball (makes it move outwards) |
| TA |
A15.2.07.013 |
| FMA |
FMA:49038 |
| Anatomical terms of muscle |
- For the muscle of the neck, see Rectus capitis lateralis muscle
The lateral rectus muscle is a muscle in the orbit. It is one of six extraocular muscles that control the movements of the eye (abduction in this case). Its function is to bring the pupil away from the midline of the body.
Contents
- 1 Structure
- 2 Function
- 3 Clinical significance
- 4 Additional images
- 5 External links
- 6 References
Structure
See also: Extraocular muscles
The lateral rectus originates at the lateral part of the annulus of Zinn, also known as the annular tendon or common tendinous ring, and inserts into the temporal side of the eyeball. The annulus of Zinn is a tendinous ring that surrounds the optic nerve and serves as the origin for four of the six extraocular muscles, excluding the inferior oblique muscle and superior oblique muscle.[1]
Innervation
It is the only muscle innervated by the abducens nerve, cranial nerve VI.
Function
See also: Eye movement
Clinical significance
A sixth nerve palsy, also known as abducens nerve palsy, is a neurological defect that results from a damaged or impaired abducens nerve. This defect can result in horizontal double vision and reduced lateral movement.[2] Proper function of the lateral rectus is tested clinically by asking the patient to look laterally.
Additional images
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Dissection showing origins of right ocular muscles, and nerves entering by the superior orbital fissure.
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Lateral view of the eyeball with lateral rectus muscle visible (cut).
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Extrinsic eye muscle. Nerves of orbita. Deep dissection.
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Extrinsic eye muscle. Nerves of orbita. Deep dissection.
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Extrinsic eye muscle. Nerves of orbita. Deep dissection.
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Extrinsic eye muscle. Nerves of orbita. Deep dissection.
External links
- Origin, insertion and nerve supply of the muscle at Loyola University Chicago Stritch School of Medicine
- -66715569 at GPnotebook
- Anatomy figure: 29:01-05 at Human Anatomy Online, SUNY Downstate Medical Center
- Cranial Nerves at Yale 6-1
- lateral+rectus+muscle at eMedicine Dictionary
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Muscles of head and neck: the head (TA A04.1, GA 4.378)
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| Extraocular (CN III, IV, VI) |
- oblique
- rectus
- superior
- inferior
- medial
- lateral
- levator palpebrae superioris
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| Mastication (CN V3) |
- masseter
- temporalis
- pterygoid
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| fascia: |
- Masseteric fascia
- Temporal fascia
- Deep portion: cementomaxillary tendon
- Superficial portion: cementomandibular tendon
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| Facial (CN VII) |
| Ear |
- auricular
- anterior
- superior
- posterior
- temporoparietalis
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| Scalp/eyelid |
- occipitofrontalis
- orbicularis oculi
- corrugator supercilii
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| fascia: |
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| Nose |
- procerus
- nasalis
- depressor septi nasi
- levator labii superioris alaeque nasi
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| Mouth |
- levator anguli oris
- levator labii superioris
- zygomaticus
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- orbicularis oris
- risorius
- buccinator
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- depressor anguli oris
- depressor labii inferioris
- mentalis
- transversus menti
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Palate/fauces (CN IX, X, XI)
(except TVP = V3) |
- veli palatini
- musculus uvulae
- palatopharyngeus (to pharynx)
- palatoglossus (to tongue)
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| Tongue (CN XII) |
- extrinsic
- genioglossus
- hyoglossus/chondroglossus
- styloglossus
- and palatoglossus [CN X]
- intrinsic
- superior longitudinal
- inferior longitudinal
- transverse
- vertical
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anat (h/n, u, t/d, a/p, l)/phys/devp/hist
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noco (m, s, c)/cong (d)/tumr, sysi/epon, injr
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References
- ^ http://www.healthline.com/human-body-maps/lateral-rectus-muscle
- ^ http://www.healthline.com/galecontent/sixth-nerve-palsy
UpToDate Contents
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English Journal
- Muscle Activation Patterns in Infants With Myelomeningocele Stepping on a Treadmill.
- Sansom JK, Teulier C, Smith BA, Moerchen V, Muraszko K, Ulrich BD.SourceDevelopmental Neuromotor Control Laboratory (Drs Sansom and Ulrich), School of Kinesiology, University of Michigan, Ann Arbor, Michigan; Laboratoire Psychologie de la Perception (Dr Teulier), Centre National de la Recherche Scientifique, Université Paris Descartes, Paris, France; Balance Disorders Laboratory (Dr Smith), Departments of Neurology and Behavioral Neuroscience, Oregon Health & Science University, Portland, Oregon; Pediatric Neuromotor Laboratory (Dr Moerchen), Department of Human Movement Science, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin; Department of Neurosurgery (Dr Muraszko), School of Medicine, University of Michigan, Ann Arbor, Michigan.
- Pediatric physical therapy : the official publication of the Section on Pediatrics of the American Physical Therapy Association.Pediatr Phys Ther.2013 Fall;25(3):278-289.
- PURPOSE:: To characterize how infants with myelomeningocele (MMC) activate lower limb muscles over the first year of life, without practice, while stepping on a motorized treadmill.METHODS:: Twelve infants with MMC were tested longitudinally at 1, 6, and 12 months. Electromyography was used to colle
- PMID 23685739
- Comparison of bilateral lateral rectus recession and unilateral recession resection for basic type intermittent exotropia in children.
- Wang L, Wu Q, Kong X, Li Z.SourceDepartment of Ophthalmology, Provincial Hospital affiliated to Shandong University, , Jinan, Shandong, P.R. China.
- The British journal of ophthalmology.Br J Ophthalmol.2013 Jul;97(7):870-3. doi: 10.1136/bjophthalmol-2013-303167. Epub 2013 May 4.
- AIMS: To compare surgical outcome of bilateral lateral rectus recession (BLR-rec) and unilateral lateral rectus recession combined with medial rectus resection (R&R) for the basic type of intermittent exotropia (IXT) in children.METHODS: Eighty-five consecutive patients aged 3-15 years old with
- PMID 23645821
- Outcomes in head and neck reconstruction by surgical site and donor site.
- Frederick JW, Sweeny L, Carroll WR, Peters GE, Rosenthal EL.SourceDepartment of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, Alabama, U.S.A.
- The Laryngoscope.Laryngoscope.2013 Jul;123(7):1612-7. doi: 10.1002/lary.23775. Epub 2013 May 17.
- OBJECTIVES/HYPOTHESIS: Define surgical outcomes of specific donor sites for free tissue transfer in head and neck reconstruction.STUDY DESIGN: Retrospective cohort review at an academic tertiary care center.METHODS: A review was made of free tissue transfer procedures performed at a university-based
- PMID 23686870
Japanese Journal
- Ontogenetic changes of trunk muscle structure in the Japanese black salamander (Hynobius nigrescens)
- OMURA Ayano,ANZAI Wataru,KOYABU Daisuke,ENDO Hideki
- Journal of Veterinary Medical Science 77(8), 931-936, 2015
- … Immediately after hatching, we found that the lateral hypaxial muscle was composed of one thick M. … rectus abdominis. … We suggest that a single thick and large lateral hypaxial muscle facilitates swimming during early developmental stages. …
- NAID 130005094685
- Noninvasive Evaluation of Trunk Muscle Recruitment after Trunk Exercises using Diffusion-weighted MR Imaging
- YANAGISAWA Osamu,MATSUNAGA Naoto,OKUBO Yu,KANEOKA Koji
- Magnetic Resonance in Medical Sciences 14(3), 173-181, 2015
- … Purpose: We evaluated trunk muscle recruitment in abdominal and back exercises with magnetic resonance (MR) diffusion-weighted imaging.<br/>Methods: Twelve men performed bent-knee sit-up, crunch, trunk lateral flexion, and trunk extension exercises. …
- NAID 130005093237
- 眼筋型重症筋無力症による麻痺性外斜視に対し，上下直筋全幅移動術が有効であった一例
- 龍井 苑子,後関 利明,石川 均,清水 公也
- 神経眼科 32(2), 161-164, 2015
- 我々は代償頭位の治療のために斜視手術を施行した眼筋型重症筋無力症の75歳男性の症例を経験した．右眼は完全眼瞼下垂で眼球運動は全方向で消失し外上転位固定であった．左眼は内転障害と麻痺性外斜視を認めたが，上下の眼球運動は残存していた．左眼に上下直筋全幅移動術および外直筋後転術を施行した．術後，左眼位は正中を保てるようになり，代償頭位は改善した．麻痺性外斜視には上下直筋全幅移動術は考慮すべき選択肢の一つ …
- NAID 130005087822
Related Links
- This video shows a lateral rectus recession via a limbal incision. This is part of a standard eye muscle surgery to treat exotropia
- This video shows the steps for a lateral rectus resection. This surgery can be used to help correct esotropia. This case was done with Dr. Jeffry Lynch MD
★リンクテーブル★
[★]
[★]
- 英
- lateral rectus (K), lateral rectus muscle LR
- ラ
- musculus rectus lateralis
- 同
- 外直筋
- 関
- 眼筋群、眼球
[★]
外側直筋麻痺
- 関
- abducens nerve disease、abducens nerve palsy、sixth cranial nerve palsy、sixth nerve palsy
[★]
- 関
- aspect、external、externally、flanking、laterale、lateralis、laterally、outer、outside、profile、side、sided、sidedness