On deformities of the chest and spine / by William Coulson.

  • William Coulson
Date:
1839
Catalogue details

Licence: Public Domain Mark

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

Provider: This material has been provided by the Harvey Cushing/John Hay Whitney Medical Library at Yale University, through the Medical Heritage Library. The original may be consulted at the Harvey Cushing/John Hay Whitney Medical Library at Yale University.

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    SECTION II. CAVITY OF THE CHEST. Owing to the arrangement of the bones which have just been described, the chest assumes a conical shape, with the narrowest part above and the widest portion below. It is flat before and behind, and considerably convex on its sides. On a horizontal section of this cone, the largest portion would fall in the region of the seventh or eighth rib. Consequently, in the compression or expansion of this part, the most remarkable change must follow in relation to the increase or decrease of its contents. This change in the size of the cavity of the chest, occurs when the ribs are drawn upwards in inspiration: so that the first ascends only a little ; the second follows it; the third, on account of its greater mobility,
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