thoracic spine

Also found in: Dictionary, Thesaurus, Encyclopedia.


1. a thornlike process or projection; called also acantha and spina.
2. the rigid bony structure in the midline of the back, composed of the vertebrae; called also backbone, spinal column, and vertebral column.

The spinal column is the axis of the skeleton; the skull and limbs are in a sense appendages. The vertebrae also provide the protective bony corridor (spinal canal) through which the spinal cord passes; they can move to a certain extent and so give flexibility to the spine, allowing it to bend forward, sideways and, to a lesser extent, backward. In the areas of the neck and lower back, the spine also can pivot, which permits the turning of the head and torso.

There are usually 24 movable vertebrae and nine that are fused together. The topmost are the seven cervical vertebrae, which form the back of the neck, supporting the skull. The head turns from side to side by means of a pivotal motion between the two highest vertebrae. Below these are the 12 thoracic vertebrae, the supports on which the ribs are hinged, and then the five lumbar vertebrae, the largest movable vertebrae (the cervical are the smallest). Below the lumbar vertebrae, the spine terminates with two groups of vertebrae fused into single bones: the sacrum, composed of five vertebrae, and the coccyx, composed of four vertebrae. Viewed from the side of the body, the spine has the shape of a gentle double S curve.
Malformations of the Spine. Of the various types of spinal malformations, some are congenital and others the result of postural defects or injuries. spina bifida is congenital. kyphosis may occasionally be congenital but is more often caused by one of the diseases that attack the structure of the bones. The most common of these is pott's disease, or tuberculosis affecting the vertebrae and soft tissues of the spine. Another is osteitis deformans, a type of bone inflammation in which parts of the bone are replaced by softer tissue. scoliosis is a curvature of the spine toward one side.
cervical spine that portion of the spine comprising the cervical vertebrae.
lumbar spine that portion of the spine comprising the lumbar vertebrae.
thoracic spine that part of the spine comprising the thoracic vertebrae.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

tho·rac·ic spine

the thoracic region of the vertebral column; the thoracic vertebrae [T1-T12] as a whole; that part of the vertebral column that enters into the formation of the thorax.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
defined a breach of < 2 mm as a "definite safe zone", a breach of 2 to 4 mm a "probable safe zone", and a breach of 4 to 8 mm as a "questionable safe zone".20 In a study by Karapinar L et al., the majority of the breaches were labelled as minor (< 2 mm) in the thoracic spine.21 Overall, a lateral breach was more common than a medial breach of the vertebral bodies.
As a result, you limit the mobility of your thoracic spine and inhibit rotation during your golf swing.
The short-term effects of thoracic spine thrust manipulation on patients with shoulder impingement syndrome.
The patient was initially referred for standard plain radiographs (X-rays) of the thoracic spine. These showed mild dorso-lumbar scoliosis without any further abnormalities.
There is multilevel involvement of the vertebral bodies, mainly in the lower thoracic spine. Minor anterior wedging, Schmorl's nodes, endplate irregularities, and disc space narrowing are present.
In contrast, osteomyelitis was reported at thoracic spine in our case.
There are only three reports of solitary intraspinal osteolipomas, two in the cervical region and one in the thoracic spine. In 2001, Lin et al.
Imaging of the cranial thoracic spine that shows right lateral displacement of the caudal spine at the level of T2 and T3 vertebrae.
To our knowledge our study is the first study that investigated and showed association between thoracic spine curve and lower extremity injuries.
The thoracolumbar junction (TLJ), where increasing torsional stiffness and specifically-directed shear loads of the spine have been observed,[5] is the transitional area between the lower thoracic spine and the upper lumbar spine.
They suggest that it may not in fact be active during respiration but may have a proprioceptive function for the thoracic spine possibly during respiration.

Full browser ?