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Thoracic Vertebrae: An Overview
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Journal of Spine

ISSN: 2165-7939

Open Access

Commentary - (2022) Volume 11, Issue 1

Thoracic Vertebrae: An Overview

Jacques Dubost*
*Correspondence: Jacques Dubost, Department of Neuroscience, Stanford University, USA, Email:
Department of Neuroscience, Stanford University, USA

Received: 08-Jan-2022, Manuscript No. jsp-22-52985; Editor assigned: 10-Jan-2022, Pre QC No. P-52985; Reviewed: 14-Jan-2022, QC No. Q-52985; Revised: 21-Jan-2022, Manuscript No. R-52985; Published: 26-Jan-2022 , DOI: 10.37421/2165-7939.22.11.521
Citation: Dubost, Jacques. “Thoracic Vertebrae: An Overview” J Spine 11 (2022): 521. DOI: 10.37421/jsp.2022.11.521
Copyright: © 2022 Dubost J. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Commentary

Between the cervical and lumbar vertebrae, the thoracic vertebrae make up the intermediate part of the vertebral column of vertebrates. There are twelve thoracic vertebrae in humans, which are intermediate in size between the cervical and lumbar vertebrae; they grow in size as they approach the lumbar vertebrae, with the lower ones being significantly larger than the upper ones. Facets on the sides of the bodies for articulation with the heads of the ribs, as well as facets on the transverse processes of all, save the eleventh and twelfth, for articulation with the tubercles of the ribs, differentiate them. T1–T12 are the human thoracic vertebrae, with the first (T1) closest to the skull and the others descending the spine toward the lumbar area, according to tradition.

The heart-shaped bodies in the middle of the thoracic area are as wide in the anteroposterior as they are in the transverse direction. They resemble the cervical and lumbar vertebrae at the ends of the thoracic area, respectively. They're slightly thicker behind the ears than in front, flat above and below, convex from side to side in front, deeply concave behind, and constricted laterally and in front. They have two costal demi-facets on either side, one above, near the root of the pedicle, and the other below, in front of the inferior vertebral notch; these are covered with cartilage in the fresh state, and when the vertebrae are articulated with one another, form oval surfaces for the reception of the rib heads with the intervening intervertebral fibrocartilages.

• The inferior vertebral notches are big and deeper than in any other section of the vertebral column, and the pedicles are pointed backward and somewhat upward.

• The laminae are large, thick, and imbricated, which means they cover adjacent vertebrae like roof tiles and join with the pedicles to protect and surround the spinal cord.

• The intervertebral foramen is a tiny, circular opening with two at each intervertebral level, one for the exiting nerve roots on the right and one for the exiting nerve roots on the left.

• The vertebral foramen, commonly known as the spinal canal, is a wide hole posterior to the vertebral body. At the thoracic level, it contains and protects the spinal cord.

• The spinous process is long, triangular in cross section, and oriented obliquely downward from the lamina to a tuberculated extremity. These processes overlap from the fifth to the eighth, but the orientation above and below is less oblique.

• The superior articular processes are thin bone plates that protrude upward from the intersections of the pedicles and laminae; their articular facets are nearly flat and directed rearward, a little laterally, and upward.

• The inferior articular processes are united to the laminae to a large extent, and protrude just slightly beyond their lower borders; their facets are directed forward, a little medial ward, and downward.

• The transverse processes develop from the arch behind the superior articular processes and pedicles; they are thick, strong, and long, obliquely rearward and laterally oriented, and each ends in a clubbed extremity with a tiny, concave surface on the front for articulation with a rib tubercle [1-5].

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