WordNet

something with a round shape resembling a flat circular plate; "the moons disk hung in a cloudless sky" (同)disc, saucer
a flat circular plate (同)disc
pertaining to the space between two vertebrae

PrepTutorEJDIC

『円盤』;円盤の表面 / 植物,動物の平たく丸い組織・部分;椎間板(ついかんばん) / (数学で)円板(円によって囲まれた範囲) / レコード

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2012/09/25 11:45:54」(JST)

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Intervertebral discs (or intervertebral fibrocartilage) lie between adjacent vertebrae in the spine. Each disc forms a cartilaginous joint to allow slight movement of the vertebrae, and acts as a ligament to hold the vertebrae together.

Structure

Discs consist of an outer annulus fibrosus, which surrounds the inner nucleus pulposus. The annulus fibrosus consists of several layers of fibrocartilage. The strong annular fibers contain the nucleus pulposus and distribute pressure evenly across the disc. The nucleus pulposus contains loose fibers suspended in a mucoprotein gel with the consistency of jelly. The nucleus of the disc acts as a shock absorber, absorbing the impact of the body's daily activities and keeping the two vertebrae separated. The disc can be likened to a jelly doughnut: whereby the annulus fibrosis is similar to the dough and the nucleus pulposis is the jelly. If one presses down on the front of the doughnut the jelly moves posteriorly or to the back. When one develops a prolapsed disc the jelly/nucleus pulposus is forced out of the doughnut/disc and may put pressure on the nerve located near the disc. This can give one the symptoms of sciatica.

Cervical vertebra with intervertebral disc

There is one disc between each pair of vertebrae, except for the first cervical segment, the atlas. The atlas is a ring around the roughly cone-shaped extension of the axis (second cervical segment). The axis acts as a post around which the atlas can rotate, allowing the neck to swivel. There are 23 discs in the human spine: 6 in the neck (cervical region), 12 in the middle back (thoracic region), and 5 in the lower back (lumbar region). For example, the disc between the fifth and sixth cervical vertabrae is designated "C5-6".

Intervertebral disks

Medical conditions related to the intervertebral disc

Main article: Intervertebral disc disorder

As people age, the nucleus pulposus begins to dehydrate, which limits its ability to absorb shock. The annulus fibrosus gets weaker with age and begins to tear. While this may not cause pain in some people, in others one or both of these may cause chronic pain.

Additional images

Artificial intervertebral disc
Posterior longitudinal ligament, in the thoracic region.
Median sagittal section through the occipital bone and first three cervical vertebræ.
Costovertebral articulations. Anterior view.

External links

Intervertebral Discs
Spinal Disc Summary
Cross section at UV pembody/body12a

UpToDate Contents

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1. 小児または思春期のアスリートにおける頸髄および頸部末梢神経損傷の概要 overview of cervical spinal cord and cervical peripheral nerve injuries in the child or adolescent athlete
2. 小児における後天性斜頚 acquired torticollis in children
3. 小児または思春期のアスリートにおける頸部の筋骨格損傷の概要 overview of musculoskeletal neck injuries in the child or adolescent athlete
4. 成人における脊髄損傷：定義、機序、および放射線学的所見 spinal column injuries in adults definitions mechanisms and radiographs
5. 成人における腰痛の評価 evaluation of low back pain in adults

English Journal

Optical ATP biosensor for extracellular ATP measurement.

Wang C, Huang CY, Lin WC.SourceDepartment of Biomedical Engineering, University of Miami, Coral Gables, FL 33146, USA.
Biosensors & bioelectronics.Biosens Bioelectron.2013 May 15;43:355-61. doi: 10.1016/j.bios.2012.12.027. Epub 2013 Jan 4.
Extracellular Adenosine-5'-triphosphate (ATP) is an important multi-functional molecule which can mediate numerous physiological activities by activating purinergic P2 receptors. The objective of this study was to develop a novel optical ATP sensor for in-situ extracellular ATP measurement in biolog
PMID 23357001

Transcript levels of major MMPs and ADAMTS-4 in relation to the clinicopathological profile of patients with tuberculous intervertebral discs and healthy controls.

Xiong C, Zhan X, Xiao Z.SourceSpine and Osteopathy Ward, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China.
Clinical biochemistry.Clin Biochem.2013 May;46(7-8):603-11. doi: 10.1016/j.clinbiochem.2013.02.006. Epub 2013 Feb 26.
OBJECTIVES: The purpose of the present study was to simultaneously examine the transcript levels of a large number of MMPs (-3, -8, -9, -13 and -14) and ADAMTS-4 and to investigate their correlation with the clinicopathological profile of patients suffering from tuberculous intervertebral discs.DESI
PMID 23481488

Japanese Journal

漁港における漁獲物運搬時の腰部椎間板圧迫力の推定

佐伯公康,木村暢夫,藤森康澄 [他]
水産工学 = Fisheries engineering/ 51(2), 133-137, 2014-11
NAID 40020277300

A pediatric case of single-level idiopathic cervical intervertebral disk calcification with symptom relapse 1 year after initial onset

Sasagawa Takeshi,Hashimoto Fumio,Nakamura Takuya,Maruhasi Yoshinobu,Matsumoto Naoyuki,Segawa Takeshi,Yamamoto Daiki,Goshima Kenichi,Murakami Hideki,Tsuchiya Hiroyuki
Journal of Pediatric Orthopaedics 34(3), 282-286, 2014-04
NAID 120005440324

Related Pictures

★リンクテーブル★

リンク元	「椎間板」「椎間円盤」
拡張検索	「hernia of intervertebral disk」「intervertebral disk displacement」
関連記事	「disk」

「椎間板」

Intervertebral disc
	Median sagittal section of two lumbar vertebræ and their ligaments. (Intervertebral fibrocartilage labeled at center left.)
	Costotransverse articulation. Seen from above. (Intervertebral fibrocartilage labeled at top center .)
Latin	disci intervertebrales
Gray's	subject #72 289
MeSH	Intervertebral+Disk