翼状靭帯
WordNet
- any connection or unifying bond
- a sheet or band of tough fibrous tissue connecting bones or cartilages or supporting muscles or organs
- having or resembling wings (同)alary, aliform, wing-shaped
PrepTutorEJDIC
- 靱帯(じんたい)(骨と骨を結びつてけ関節の動きを調節する)
- 翼のある;翼の形をした
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/06/11 05:26:13」(JST)
[Wiki en表示]
| Alar ligament |
|
Membrana tectoria, transverse, and alar ligaments. Alar ligament labeled at center right
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| Details |
| From |
Sides of the dens (on the axis, or the second cervical vertebra) |
| To |
Tubercles on the medial side of the occipital condyle |
| Identifiers |
| Latin |
Ligamenta alaria |
Dorlands
/Elsevier |
l_09/12491573 |
| TA |
A03.2.04.002 |
| FMA |
71395 |
| Anatomical terminology
[edit on Wikidata]
|
The alar ligaments connect the sides of the dens (on the axis, the second cervical vertebra) to tubercles on the medial side of the occipital condyle.
They are short, tough, fibrous cords that attach on the skull and on the axis, and function to check side-to-side movements of the head when it is turned. Because of their function, the alar ligaments are also known as the "check ligaments of the odontoid".
Contents
- 1 Structure
- 2 Function
- 3 Clinical significance
- 4 References
Structure
The alar ligaments are two strong, rounded cords of about 0.5 cm in diameter that run from the sides of the foramen magnum of the skull to the dens of the axis, the second cervical vertebra.[1] They span almost horizontally, creating an angle between them of at least 140°.[2]
Development
The alar ligaments, along with the transverse ligament of the atlas, derive from the axial component of the first cervical sclerotome.[3]
Function
The function of the alar ligaments is to limit the amount of rotation of the head, and by their action on the dens of the axis, they attach the skull to the axis, the second cervical vertebra.[1]
Clinical significance
The alar ligaments are prone to tearing if a force is applied when the head is flexed and in rotation.[1] If an alar ligament is ruptured, the range of rotation of the head relative to the neck increases beyond the normal limit of 20 degrees.[4]
References
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
- ^ a b c Moore, KL; Dalley, AF; Agur, AM (2013). Clinically Oriented Anatomy (7th ed.). Lippincott Williams & Wilkins. p. 469, 477. ISBN 978-1-4511-8447-1.
- ^ Osmotherly, PG; Rivett, DA; Mercer, SR (2013). "Revisiting the clinical anatomy of the alar ligaments.". European Spine Journal. 22 (1): 60–64. doi:10.1007/s00586-012-2496-4. PMC 3540300 . PMID 22968541.
- ^ Pang, D; Thompson, DN (2011). "Embryology and bony malformations of the craniovertebral junction.". Child's Nervous System. 27 (4): 523–564. doi:10.1007/s00381-010-1358-9. PMC 3055990 . PMID 21193993.
- ^ Osmotherly, PG; Rivett, D; Rowe, LJ (July 2013). "Toward understanding normal craniocervical rotation occurring during the rotation stress test for the alar ligaments.". Physical Therapy. 93 (7): 986–992. doi:10.2522/ptj.20120266. PMID 23538587.
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Joints and ligaments of torso
|
| Vertebral |
| Syndesmosis |
| Of vertebral bodies |
- anterior longitudinal ligament
- posterior longitudinal ligament
|
| Of vertebral arches |
- ligamenta flava
- supraspinous ligament
- interspinous ligament
- intertransverse ligament
|
|
| Symphysis |
- intervertebral disc (anulus fibrosus
- nucleus pulposus)
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| Synovial joint |
| Atlanto-axial |
- Medial: Cruciate ligament of atlas (Transverse ligament of atlas)
- Alar ligament
- Apical ligament of dens
- Tectorial membrane of atlanto-axial joint
- anterior atlantoaxial ligament
- posterior atlantoaxial ligament
|
| Zygapophysial |
|
| Lumbosacral |
|
| Sacrococcygeal |
- anterior sacrococcygeal ligament
- posterior sacrococcygeal ligament
|
|
|
| Thorax |
| Costovertebral |
| Head of rib |
- Radiate ligament
- Intra-articular ligament
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| Costotransverse |
- Costotransverse ligament
- Lumbocostal ligament
|
|
| Sternocostal |
- interarticular sternocostal ligament
- radiate sternocostal ligaments
- costoxiphoid ligaments
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| Interchondral |
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| Costochondral |
|
|
| Pelvis |
| Syndesmoses of pelvic girdle |
- Obturator membrane
- Obturator canal
|
| Pubic symphysis |
- superior pubic ligament
- inferior pubic ligament
|
| Sacroiliac |
- anterior sacroiliac ligament
- posterior sacroiliac ligament
- interosseous sacroiliac ligament
- ligaments connecting the sacrum and ischium: sacrotuberous ligament
- sacrospinous ligament
|
|
UpToDate Contents
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English Journal
- Intraarticular atlantooccipital fusion for the treatment of traumatic occipitocervical dislocation in a child: a new technique for selective stabilization with nine years follow-up.
- Jeszenszky D1, Fekete TF, Lattig F, Bognár L.
- Spine.Spine (Phila Pa 1976).2010 May 1;35(10):E421-6. doi: 10.1097/BRS.0b013e3181c91fa1.
- PMID 20393390
- [Rupture of the ligamenta alaria between dens axis and atlas and condylus of the right os occipitale].
- Grönewäller E, Kopp A.
- RoFo : Fortschritte auf dem Gebiete der Rontgenstrahlen und der Nuklearmedizin.Rofo.1999 Sep;171(3):M35-6.
- PMID 10576805
Related Links
- a·lar lig·a·ments [TA] one of a pair of short stout bands that extends from the side of the dens of the axis to the tubercle on the medial aspect of the occipital condyle; Synonym(s): check ligaments of odontoid Synonym(s): ligamenta ...
- Ligamenta alaria information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues. ... Introduction: Ligamenta alaria Description of Ligamenta alaria Ligamenta alaria: Related Topics
★リンクテーブル★
[★]
- 英
- alar ligament (N), alar ligaments (K)
- ラ
- ligamenta alaria
- 関
- 環軸関節
- 図：N.18
- 歯突起の両側面から大後頭孔の外側縁に伸びる (M.268)
- 頭部の回転を抑制する (M.268)