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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    lamellae ; anterior, which is attached to the bases of the transverse processes of the lumbar verteV)ra3; middle, to the apices of the transverse processes; and posterior, to the apices of the spinous processes. The anterior and middle lamella inclose the quad- ratus lumborum muscle ; the middle and posterior, the erector spina3. The union of the posterior lamella with the posterior aponeurosis of the internal oblique, serratus posticus inferior, and latissimus dorsi, constitutes the lumbar fascia. To dissect the rectus muscle, its sheath should be opened by a ver- tical incision extending from over the cartilages of the lower ribs to the front of the os pubis. The Fig. 4. sheath may then be dissected otf and turned to either side; this is easily done excepting at the linere transverste, where a close adhesion subsists between the muscle and the external boundary of the sheath. The sheath contains the rectus and pyramidalis muscle. The RECTUS MUSCLE arises by a double tendon from the front and crest of the os pubis, and is inserted into the cartilages of the fifth, sixth, and seventh ribs. It is traversed by several tendinous intersections, called linefe transversfe. One of these is situated at the umbilicus, one over the ensiform cartilage, and one midway between these points; when a fourth exists, it is situated below the umbili- cus. They are vestiges of the abdominal ribs of reptiles, and very rarely extend completely through the muscle. The PYRAMIDALIS MUSCLE A Lateral View of the TnrxK op the Body, showing its Muscles, and PAiiTHi i-AULY the Tuans versalis AnnoMiNis.—1. The costal origin of the Intis.siimis dorsi musolo. 2. The serratus nuignus. 3. The upi>er part of the external oldiiiue muscle divided in the direction host calculated to show the muscles beneath without interfering with it^ indigitations with the serratus magnus. 4. Two of the external intercostal muscles. 5. Two of the internal intercostals. 6. The transversalis muscle. 7. Its posterior aponeurosis. 8. Its anterior aponeurosis, forming the most posterior layer of the sheath of the rec- tus. 9. The lower part of the left rectus with the aponeurosis of the transver- salis passing in front. 10. The right rectus muscle. 11. The arched opening left between the lower border of the transversalis muscle and Poupart's liga- ment, through which the spermatic cord and hernia pass. 12. The gluteus maximus, and medius, and tensor vagina* femoris muscles invested by fascia lata.