On deformities of the chest and spine / [William Coulson].

  • William Coulson
Date:
1839
Catalogue details

Licence: Public Domain Mark

Credit: On deformities of the chest and spine / [William Coulson]. Source: Wellcome Collection.

    25/344 page 3
    breadth, thickness and convexity, as they descend, as does also the substance placed between them: hence the column is of a conical shape. As to direction, the column they form is somewhat bent; its chief convexity projecting behind, and its greatest concavity being almost opposite to the lower portion of the breast-bone. The sternum, composed of three distinct portions, forms the anterior boundary of the chest. Its position is oblique ; the upper part being nearest the spine, and the lower part being more distant from it. It is slightly convex in front, and concave towards the chest. Its margins are thick, and marked by depressions for the reception of the cartilages of the ribs. The twelve ribs on each side are all fixed to the back-bone behind, by a double connexion ; first to the bodies of two adjoining vertebrae, and then to a lateral process or projection from the lower of each pair, thus effecting a very steady joint, and yet haying the neces- sary freedom of motion.
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