WordNet
- any connection or unifying bond
- a sheet or band of tough fibrous tissue connecting bones or cartilages or supporting muscles or organs
- having a very finely toothed margin
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)
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/11/22 12:32:45」(JST)
[Wiki en表示]
| Denticulate ligaments |
|
| The medulla spinalis and its membranes. (Ligamentum denticulatum labeled vertically at bottom left.) |
|
| Diagrammatic transverse section of the medulla spinalis and its membranes. (Denticulate ligament not labeled, but region is visible.) |
| Latin |
ligamentum denticulatum |
| Gray's |
subject #185 750 |
The pia mater of the spinal cord has a pair of denticulate ligaments (one on each side of the spinal cord) with 21 attachments per side which attach it to the arachnoid and dura maters. Named for their tooth-like appearance, the denticulate ligaments are traditionally believed to provide stability for the spinal cord against motion within the vertebral column. Fortunately, from a clinical standpoint, denticulate ligaments do not play a significant role in lumbar spinal stenosis when compared to issues such as disc herniations, facet hypertrophy, shape of spinal canal, size of spinal canal, ligamentum flavum hypertrophy, or degenerative joint disease resulting in bony osteophyte formation.
Contents
- 1 Histology and Anatomy
- 2 Additional images
- 3 Sources
- 4 See also
- 5 External links
Histology and Anatomy
Each denticulate ligament is composed of a single narrow fibrous strip that extends from the craniovertebral junction to T12. Each ligament features 18-20 triangular extensions that attach to the dura at their apices. The triangular extensions are smaller and more numerous at the cervical levels, and are larger and less numerous at the thoracic levels. The apices of the extensions attach to the dura via fibrous bands at cervical levels (each band 3-5 mm long) and lower thoracic levels (21-26 mm long), whereas they attach directly to the dura at upper thoracic levels.
The narrow fibrous strip of the denticulate ligament features longitudinally oriented collagen fibers, whereas the triangular extensions are composed of transverse and obliquely oriented collagen fibers. The collagen fibers are thicker and more abundant at the cervical than at the thoracic levels.
These ligaments may be affected by altered motion and position of the vertebral segments
Additional images
-
A portion of the spinal cord, showing its right lateral surface. The dura is opened and arranged to show the nerve roots.
Sources
- Tubbs R, Salter G, Grabb P, Oakes W (2001). "The denticulate ligament: anatomy and functional significance.". J Neurosurg 94 (2 Suppl): 271–5. PMID 11302630.
- Clinically Oriented Anatomy. Moore, Keith and Arthur F. Dalley. Philadelphia, Lipincott, Williams and Williams 2006.
- RC Schafer DC PhD. Basic Principles of Chiropractic Neuroscience - Chapter 5; Neuroconceptual Models of Chiropractic ACA Press 1998 | http://www.chiro.org/ACAPress/Neuroconceptual_Models_of_Chiropractic.html.
- Ceylan D; Tatarlı N, Abdullaev T, Şeker A, Yıldız SD, Keleş E, Konya D, Bayri Y, Kiliç T, Çavdar S (July 2012). Acta Neurochir (Wien). 7 154: 1229–34. doi:10.1007/s00701-012-1361-x http://www.ncbi.nlm.nih.gov/pubmed/22555553# .
See also
External links
- denticulate+ligament at eMedicine Dictionary
- SUNY Figs 02:05-03 - "Coverings of the spinal cord."
|
Anatomy: meninges of the brain and medulla spinalis (TA A14.1.01, GA 9.749/9.872)
|
|
| Layers |
|
Dura mater
|
Falx cerebri · Tentorium cerebelli · Falx cerebelli · Diaphragma sellae · Trigeminal cave
|
|
|
Arachnoid mater
|
Arachnoid granulation · Arachnoid trabeculae
Subarachnoid cisterns: Cisterna magna · Pontine cistern · Interpeduncular cistern · Chiasmatic · Lateral cerebral fossa · Of great cerebral vein · Of lamina terminalis
|
|
|
Pia mater
|
Denticulate ligaments
Tela chorioidea (Tela chorioidea of third ventricle, Tela chorioidea of fourth ventricle) · Choroid plexus
|
|
|
Combined
|
Filum terminale · Leptomeninges
|
|
|
| Spaces |
Epidural space · Subdural space · Subarachnoid space (Cerebrospinal fluid)
|
|
|
|
anat (n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp
|
noco (m/d/e/h/v/s)/cong/tumr, sysi/epon, injr
|
proc, drug (N1A/2AB/C/3/4/7A/B/C/D)
|
|
|
|
UpToDate Contents
全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.
- 1. 後十字靱帯損傷 posterior cruciate ligament injury
- 2. 膝内側側副靱帯損傷 medial collateral ligament injury of the knee
- 3. 外側側副靭帯損傷および関連する膝後外側支持機構損傷 lateral collateral ligament injury and related posterolateral corner injuries of the knee
- 4. 前十字靱帯損傷 anterior cruciate ligament injury
- 5. 子宮摘出時の予防的膣尖部挙上術 prophylactic vaginal apex suspension at the time of hysterectomy
English Journal
- Spinal canal surrogate for testing intradural implants.
- Oya H, Howard MA 3rd, Shurig R, Gillies GT.SourceDepartment of Neurosurgery, University of Iowa Hospitals and Clinics , Iowa City, Iowa , USA.
- Journal of medical engineering & technology.J Med Eng Technol.2012 Nov;36(8):407-10. doi: 10.3109/03091902.2012.712204. Epub 2012 Sep 7.
- We have designed, built and tested an anthropomorphic-scale surrogate spinal canal, for use in preliminary evaluations of the performance characteristics of a novel intradural spinal cord stimulator. The surrogate employs a silicone mock spinal cord with semi-major and semi-minor diameters of 10 and
- PMID 22953718
Related Links
- Definition of denticulate ligament in the Medical Dictionary. denticulate ligament explanation. Information about denticulate ligament in Free online English dictionary. What is denticulate ligament? Meaning of denticulate ligament ...
- Medical Definition of DENTICULATE LIGAMENT: a band of fibrous pia mater extending along the spinal cord on each side between the dorsal and ventral roots—called also dentate ligament Browse Ask The Editor Videos Lay vs. Lie
★リンクテーブル★
[★]
- 英
- denticulate ligament (M)
- 同
- dentate ligament
-図譜：M.282
- 硬膜嚢の中で脊髄の両側にあり、脊髄をぶら下げている靭帯
- 英
- denticulate ligament