A system of human anatomy, general and special . sacral nerve is about one-thirdthe size of the preceding sacral nerve ; it di-vides into several branches, one of which issent to the sacral plexus, a second to join thefifth sacral nerve, a third to the viscera of thepelvis communicating with the hypogastricplexus, and a fourth to the coccygeus muscle,and to the integument around the anus. Thefifth anterior sacral nerve presents about halfthe size of the fourth; it divides into twobranches, one of which communicates withthe fourth, the other with the sixth. The sixthsacral nerve (coccygeal) is
A system of human anatomy, general and special . sacral nerve is about one-thirdthe size of the preceding sacral nerve ; it di-vides into several branches, one of which issent to the sacral plexus, a second to join thefifth sacral nerve, a third to the viscera of thepelvis communicating with the hypogastricplexus, and a fourth to the coccygeus muscle,and to the integument around the anus. Thefifth anterior sacral nerve presents about halfthe size of the fourth; it divides into twobranches, one of which communicates withthe fourth, the other with the sixth. The sixthsacral nerve (coccygeal) is exceedingly small;it gives oftan ascending filament which is con-tinuous with the communicating branch ofthe fifth; and a descending filament whichpasses downwards by the side of the coccyxand traverses the fibres of the great sacro-ischiatic ligament to be distributed to thegluteus maximus and to the integument. All the anterior sacralnerves receive branches from the sacral ganglia of the sympatheticat their emergence from the sacral SACRAL PLEXUS. The Sacral plexus is formed by the lumbo-sacral, and by the ante-rior branches of the four upper sacral nerves. The plexus is trian-gular in form, the base corresponding with the whole length of thesacrum, and the apex with the lower part of the great ischiatic fora- * A view of the branches of the ischiatic plexus to the hip and back of the thigh. I, sacral nerves. 2. Nervi glutei. 3. The internal pudic nerve, (nervus pudenda-lis longus superior). 4. The lesser ischiatic nerve, giving off the perineal cutaneous(pudendalis longus inferior), and 5. The ramus femoralis cutaneus posterior. The refer-ence to the great ischiatic has been omitted. It is seen to the right of 3. GLUTEAL NERVE. 455 men. It is in relation behind with the pyriformis muscle, and in frontwith the pelvic fascia, which latter separates it from the branches ofthe internal , and from the viscera of the pelvis. The Branches of the s
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectanatomy, bookyear1847
