Electro-physiology and electro-therapeutics : showing the best methods for the medical uses of electricity / By Alfred C. Garratt.
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the muscles, they pierce the sacro-lumbalis outward, to reach the integument of the lumbar and upper sacral region, to which these also are finally distributed. The longer branches of the primitive five anterior nerve trunks that branch off while be- tween the flat surfaces of the psoas magmas muscle, which lies beneath or beyond them, on the one hand, and the quadrulus lumborum, that is over them, on the other, also form numerous anastomoses and loops, which, together with the last dorsal, con- stitute there the lumbar plexus. From this plexus there go out several branches that very partic- ularly interest us here. The first are the musculo- cutaneous nerves, which are two in number, and known as the ilio-scrolal, and the ilio - inguinal. These pass together, and mostly from the tipper lumbar nerves to the mid- dle of the crest of the ilium, and there piercing the transversa/is muscle, they each give off a cuta- neous branch that passes over and out, to be lost Fig. 76. A View of the Lumbar and lachiatic Plex- . + f +i o uses, showing the Branches of the former. m tlie integuments 01 tllC 1. The Lumbar Plexus. 2. The Ischiatic Plexus. 3, 3. Abdomino-Crural Nerve. 4. The External Cutaneous Nerve, (Inguino-Cutaneous.) 5, 6, 7. Cutaneous Branches from 8. The Anterior Crural Nerve. 9. The Genito-Crural Nerve, or Spermaticus Extemus. 10, 10. The Lower Termination of the Great Sympathetic. 11. The Iliacus Internus Muscle. 12. The Three Broad Muscles of the Ab- domen. 13. The Psoas Magnus Muscle. 14. Bodies of the Lumbar Vertebra. 15. The Quadratus Lumborum Muscle. 16. The Diaphragm. 17. The Sartorius, crossed by Branches of Nerves from the Crural, also om the Spermaticus.