- Costotransverse joint
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Costotransverse articulations Costotransverse articulation. Seen from above. Section of the costotransverse joints from the third to the ninth inclusive. Contrast the concave facets on the upper with the flattened facets on the lower transverse processes. Latin articulatio costotransversaria Gray's subject #76 300 The facet of the tubercle of the rib forms an articulation with the adjacent transverse process of a thoracic vertebra. This is a plane type synovial joint called the costotransverse joint.
This articulation is present in all but the eleventh and twelfth ribs. Ribs 1 to 10 have two joints in close proximity posteriorly; the costovertebral joints and the costotranseverse joints. This arrangement restrains the motion of the ribs allowing them to work in a parallel fashion during breathing. If a typical rib had only one joint posteriorly the resultant swivel action would allow a rib to be non-parallel with respect to the neighboring ribs making for a very inefficient respiratory mechanism. The ventral rami innervate the costotransverse joints. Therefore, therapeutic medial branch blocks are ineffectual.
The ligaments of the joint are:
- Articular capsule
- Costotransverse ligament
- Posterior costotransverse
- Anterior costotransverse
- Ligament of neck of rib
- Ligament of tubercle of rib
External links
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.
Joints and ligaments of torso (TA A03.02–04, GA 3.299) Vertebral Of vertebral bodiesmedian: Cruciate ligament of atlas (Transverse ligament of atlas) · Alar ligament · Apical ligament of dens · Tectorial membrane of atlanto-axial joint
lateral: no ligaments
anterior atlantoaxial ligament · posterior atlantoaxial ligamentno ligamentsLumbosacralThorax Radiate ligament · Intra-articular ligamentCostotransverseno ligamentsno ligamentsPelvis anterior sacroiliac ligament · posterior sacroiliac ligament · interosseous sacroiliac ligament
ligaments connecting the sacrum and ischium: sacrotuberous ligament · sacrospinous ligament
Greater sciatic foramen · Lesser sciatic foramenM: JNT
anat(h/c, u, t, l)/phys
noco(arth/defr/back/soft)/cong, sysi/epon, injr
proc, drug(M01C, M4)
Categories:- Joints
- Thorax
- Musculoskeletal system stubs
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