356 



MUSCULAR DISTRIBUTION OF SPINAL NERVES. 



NERVE. 

 3rd lumbar 



ANTERIOR DIVISION. 



POSTERIOR DIVISION. 



Multifidus spinse, Erector 

 spinae. 



Psoas magnus, Iliacus, Pectineus, Adductor 



longus, Adductor brevis. Adductor magnus. 



Gracilis, Obturator externus, Sartorius, 



Quadriceps. 

 4th lumbar . . (Psoas magnus). Adductor brevis, Adductor 



magnus, G-racilis, Obturator externus, 



Quadriceps, Gluteus medius and minimus, 



Tensor vaginae femoris, (Gluteus maximus, | 



Obturator internus), Quadratus femoris, | 



Semimembranosus, (Deep muscles of back of \ 



leg), Muscles of front and outer side of leg, 



Extensor brevis digitorum. 

 5th lumbar . . (Quadriceps), Adductor magnus, Grluteus 



maximus, medius and minimus, Tensor 



vaginas femoris, (Pyriformis), Quadratus 



femoris, Obturator internus, Hamstrings, 



Muscles of leg (except gastrocnemius), 



Extensor brevis digitorum, Inner muscles of 



sole. 

 1st sacral . . . Gluteus maximus, medius and mini- \ 



mus, Tensor vagina3 femoris, Pyriformis, 



Obturator internus, Quadratus femoris, 



(Adductor magnus), Hamstrings, Muscles of 



leg and foot. 

 2nd sacral . . . Gluteus maximus, (Gluteus medius and minimus, 



Tensor vaginae femoris), Pyriformis, Obtu- ' 



rator internus, Semiteniinosus, Biceps, Multifidus spina?. 



(Muscles of front of leg, Peronei), Gastro- 

 cnemius, Soleus, Flexor longus hallucis, 



(Flexor longus digitorum, Tibialis posticus), 



Outer muscles of sole, Perineal muscles. 

 3rd sacral . . . (Pyriformis), Biceps, long head, (Gastrocnemius. 



Soleus, Muscles of sole), (Levator ani, 



Coccygeus), Perineal muscles, 

 ith sacral . . . Levator ani, Coccygeus, Perineal muscles. 

 5th sacral . . . (Coccygeus). 



The unstriped muscles of the viscera and other parts are also under the influence of 

 fibres derived from the cerebro-spinal nerves. These will be referred to in the description of 

 the sympathetic. 



/ 



LITERATURE OF THE MUSCULAR DISTRIBUTION OF SPINAL NERVES. 



Beevor, C. E., and Horsley, V., Note on some of the Motor Functions of certain Cranial 

 Nerves, and of the three first Cervical Nerves, in the Monkey, Proc. Roy. Soc., 1888. 



Bolk, L., Beziehungen zicischen Skelet, Muskulatur und Ncrvcn der Extremitaten, dargeleyt am 

 Beckengilrtel, an dessen Muskulatur, sowie am Plexus lumbo-sacralis, Morphol. Jahrb., xxi, 1894. 



Eisler, P., Der Plexus lumbosacralis des Menschen, 1892. 



Ferrier, D., and Yeo, GK F., The Functional Relations of the Motor Roots of the Brachial 

 and Lumbo-sacral Plexuses, Proc. Roy. Soc., 1881. 



Forg-ue et Lanneg-race. Distribution des racines motrices dans les muscles des membres, and 

 Distribution Kpeciale des racines motrices du plexus lombo-sacre, Comptes rendus, 1884. 



Growers, "W. R., Diseases of the Nervous System. 



Herring-ham, W. P., The Minute Anatomy of the Brachial Plexus, Proc. Roy. Soc., 1886. 



Paterson, A. M., The Origin and Distribution of the Nerves to the Lower Limb. Journ. of Anat., 

 xxviii, 18934. 



Huge, GK, Zeugnisse fur die metamere Verkilrzung des Rumpfes bei Saugethieren. Der 

 Musculus rectus thoraco-abdominalis der Primaten, Morphol. Jahrb., xix, 1892; Verschiebungcn in 

 den Endgebieten der Nerven des Plexus lumbalis der Primaten, Morphol. Jahrb., xx, 1893 (Nerves to 

 abdominal muscles). 



Russell, J. S. Risien. An Experimental Investigation of the Nerve-roots which enter into the 

 Formation of the Brachial Plexus of the Dog, Phil. Trans., 1892. 



Sherring-ton, C. S., Notes on the Arrangement of some Motor Fibres in the Lumlo-sacral Plexus. 

 Journ. of Physg., xiii, 1892. 



Simon, A., Ueber die Bcziehungen bestimmter Muskeln zu bestimmten Abschnittcn der grauen 

 Substanz des Ruckenmarks, In. Diss., Strassburg, 1892. 



Starr, M. Allen, American Journal of the Medical Sciences, May, 1888. 



Thorburn, W. A Contribution to the Surgery of the Spinal Cord, 1889. 



