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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/05/01 00:04:32」(JST)

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The articular processes or zygapophyses (Greek ζυγον = "yoke" (because it links two vertebrae) + απο = "away" + φυσις = "process") of a vertebra, are projections of the vertebra that serve the purpose of fitting with an adjacent vertebra. The actual region of contact is called the articular facet.^[1]

Articular processes spring from the junctions of the pedicles and laminæ, and there are two right and left, and two superior and inferior. These stick out of an end of a vertebra to lock with a zygapophysis on the next vertebra, to make the backbone more stable.

The superior processes or prezygapophysis project upward from a lower vertebra, and their articular surfaces are directed more or less backward (oblique coronal plane).
The inferior processes or postzygapophysis project downward from a higher vertebra, and their articular surfaces are directed more or less forward and outward.

The articular surfaces are coated with hyaline cartilage.

In the cervical vertebral column, the articular processes collectively form the articular pillars. These are the bony surfaces palpated just lateral to the spinous processes.

Additional images

Cervical vertebra
Median sagittal section of two lumbar vertebræ and their ligaments.

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

^ Moore, Keith L. et al. (2010) Clinically Oriented Anatomy, 6th Ed, p.442 fig. 4.2

External links

aplab - BioWeb at University of Wisconsin System
Atlas image: back_bone28 at the University of Michigan Health System - "Lumbar Vertebral Column, Posterolateral View"
Anatomy figure: 02:01-09 at Human Anatomy Online, SUNY Downstate Medical Center - "Superior and lateral views of typical vertebrae."
Photo of model at Waynesburg College skeleton2/inferiorarticularprocess
Photo of model at Waynesburg College skeleton2/superiorarticularprocess

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English Journal

Intra-articular Triamcinolone Versus Hyaluronate Injections for Low Back Pain With Symptoms Suggestive of Lumbar Zygapophyseal Joint Arthropathy: A Pragmatic, Double-Blind Randomized Controlled Trial.

Annaswamy TM1, Armstead C, Carlson L, Elkins NJ, Kocak D, Bierner SM.
American journal of physical medicine & rehabilitation.Am J Phys Med Rehabil.2018 Apr;97(4):278-284. doi: 10.1097/PHM.0000000000000879.
PMID 29261533

Intraarticular Pulsed Radiofrequency to Treat Refractory Lumbar Facet Joint Pain in Patients with Low Back Pain.

Chang MC1, Cho YW1, Ahn DH2, Do KH3.
World neurosurgery.World Neurosurg.2018 Apr;112:e140-e144. doi: 10.1016/j.wneu.2017.12.181. Epub 2018 Jan 6.
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Facet joint fixation and ALIF, DLIF, or TLIF for treatment of degenerative lumbar disc diseases: retrospective cohort study of a new minimally invasive technique.

Belykh E1, Kalinin AA2, Martirosyan NL3, Kerimbayev T4, Theodore N3, Preul MC5, Byvaltsev VA2.
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PMID 29588241

Japanese Journal

Characterization of Individuals with Sacroiliac Joint Bridging in a Skeletal Population: Analysis of Degenerative Changes in Spinal Vertebrae

BioMed Research International 2014, 1-9, 2014-09-08
NAID 120005477004

起立不全のアジアゾウにおける頸椎および頭位胸椎の変形

日本野生動物医学会誌 19(3), 79-86, 2014
NAID 130004714263

Low back disorders among athletes and its prevention

The journal of physical fitness and sports medicine : JPFSM 2(2), 185-190, 2013-05-25
NAID 10031159035

Related Pictures

image zygapophyseal_joints for term side UAB Adv. Anatomy Journal Zygapophyseal Joints image articular_capsule_of_zygapophyseal There are usually two pairs of facets that Facet Joint or Zygapophysial Joint Pain An irritated facet joint shown

★リンクテーブル★

リンク元	「zygapophysis」「articular process」
拡張検索	「zygapophyseal joint」

「zygapophysis」

Articular processes
	A cervical vertebra. (Superior and inferior processes labeled at right.)
	A thoracic vertebra. (Superior labeled at top; inferior labeled at bottom.)
Details
Identifiers
Latin	Processus articularis inferior vertebrae,; processus articularis superior vertebrae
Dorlands; /Elsevier	p_34/12667306
TA	A02.2.01.014; A02.2.01.016
FMA	11952
	Anatomical terms of bone [edit on Wikidata]