On the growth of the recruit and young soldier : with a view to a judicious selection of "growing lads" for the army, and a regulated system of training for recruits / by Sir William Aitken.

  • Aitken, William, 1825-1892.
Date:
1887
Catalogue details

Licence: Public Domain Mark

Credit: On the growth of the recruit and young soldier : with a view to a judicious selection of "growing lads" for the army, and a regulated system of training for recruits / by Sir William Aitken. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    (Fig. 4) may illustrate what the skeleton demonstrates at the age of i 8. The small thin, bony, pieces (2 and 3), which are to be superadded to the principal piece or shaft (i) of the rib, ultimately coalesce with it, and are known as the epiphyses. The Breast-Bone or Sternum (Fig. 5), which closes in the cavity of the chest in front, is an elongated bone inclining in a downward and forward direction. It consists of three parts in the adult— an upper, called the manu- brium or prse-sternum (i, Fig. 5) ; a middle, the body or meso-sternum (2, 3, and 4, Fig. 5), and a lower, the ensi- form or xiphi-sternum (5). Fig. 5.—The sternum, soon after T^U„ „ i.' 1 • 1 . , puberty, showing cartilage between 1 he portion (6), which is the the manubrium (I) and the body; and imperfect union of the first, second, and third pieces of the body (2, 3, and 4); while the third and fourth (4 and 5) are united. The manubrium (i) generally re- mains separate till after the 25th year ; (3) and (4) unite between 20th and 25th.—Quain's A natoviy, 8th edition, by Sharpey, Thomson, and Schafer, vol. i. p. 30. top of the ensiform part, is always cartilaginous, and is named the ensiform cartilage. The well-marked transverse lines indicate not only the subdivision of the bone into three parts, but that of the meso-sternum into four originally distinct segments. (2) Bones of the Shoulder, Arm, Forearm, and Hand Having shown to what extent the component parts of the axial skeleton are immature and in-