The dissector's manual of practical and surgical anatomy / By Erasmus Wilson.

  • Wilson, Erasmus, Sir, 1809-1884.
Date:
1856
Catalogue details

Licence: Public Domain Mark

Credit: The dissector's manual of practical and surgical anatomy / By Erasmus Wilson. 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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    the abdomen should he dissected exclusively for the muscles, and on this side the skin and fascia may he taken up together; the otlier should he reserved for studying the relations of hernia.] The superficial fascia of the abdomen, like that in otlier parts of the body, is composed of cellular and adipose tissue. The quantity of fat varies considerably in different subjects. Near the groin the fascia is separable into two layers, between which are situated the superficial vessels and some inguinal glands. The superficial layer, in which the fat is chiefly found, is con- tinuous over Poupart's ligament with the superficial fascia of the thigh. The deep layer is attached to Poupart's ligament, and is lost on the upper part of the fascia lata. It contains but little fat, and is cellulo-fibrous in structure. The superficial fascia, divested of its fat, forms a sheath for the spermatic cord, and is prolonged over the penis and scrotum into the perineum, where it is continuous with the superficial fascia of that region. The superficial arteries of the abdomen are the superior exter- nal pudic, superficial epigastric, and superficial circumflexa ilii, all situated in the groin and branches of the femoral artery ; and cutaneous branches which accompany the lateral cutaneous and anterior cutaneous nerves ; the latter being derived from the in- tercostals, deep epigastric, and internal mammary artery. The superior external pudic artery crosses the external abdo- minal ring and spermatic cord, and is distributed to the integu- ment of the pubes and external organs of generation. The superficial epigastric lies externally to the external abdo- minal ring, and ascends towards the umbilicus, supplying the in- tegument in its course, and inguinal glands. The superficial circumflexa ilii sends one or two small branches to the integument near the iliac extremity of Poupart's ligament. The veins accompanying these arteries terminate in the inter- nal saphenous vein. The superficial nerves of the abdomen are the lateral cutane- ous, anterior cutaneous, ilio-hypogastric, and ilio-inguinal. The lateral cutaneous 7ierves, five or six in number, are derived from the intercostal nerves. They pierce the muscles in a line with the thoracic branches, and divide like them into an anterior and posterior branch. The anterior branch is continued for- wards as far as the linea semilunaris. The posterior branch, smaller than the anterior, turns backward over the latissimus dorsi muscle. The lateral cutaneo^is branch of the last dorsal nerve is an ex- ception to the rest. It does not divide after piercing the exter- nal oblique muscle, but is directed downwards over the crest of the ilium, and is distributed to the integument of the hip as low