422 



SPECIAL ANATOMY. 



[Nerves of the Lower Extremity from the LUMBAR PLEXUS. 

 Anterior crural nerve supplying the flexors of the hip, sartorius, and the 



extensors of the knee joint. 

 Obturator nerve the obturator extern., the adductors and 



gracilis. 



LUMBO-SACRAL. 

 Superior glutceal 



Cutaneous branches 



SACRAL. 

 Internal pudic 



Inferior glutceal 



Branches 

 Branches 



' Muscular branches 

 External poplitceal 



Internal poplitceal 



(posterior tibial) 

 Internal plantar 

 External plantar 



Cutaneous branches 



glutceus med. and min. and tensor vaginae 



femoris. 

 the skin over these muscles. 



muscles and skin of perineum, and parts 



of the organs of generation, &c. 

 glutceus maximus and skin of pudendal 



and posterior femoral regions. 

 Viscera in pelvis. 

 obturat. intern., pyriform., gemelli, quad. 



femoris. 



the flexors of the knee, 

 the peronceal muscles, the flexor of foot 



and extensors of toes, 

 the extensors of foot and long flexors of 



toes. 



short flexors of toes, 

 the^&r. ace., interossei, adductor, hallucis, 



trans, pedis andfl. min. digit. 

 the skin over these muscles.] 



669. 



The Sympathetic Nerve, 



Nervus sympathicus s. gangliosus, 



This is a string (connecting cord) of from twenty-four to twenty- 

 five interrupted ganglia, found upon the lateral and anterior sur- 

 faces of the vertebral column, before the transverse processes of the 

 vertebrae, which forms plexuses on the different organs by means 

 of branches which pass off laterally from the ganglia. It receives 

 its roots from the brain, but in great measure from the spinal cord, 

 as filaments pass from each spinal nerve to the corresponding gan- 

 glion, remaining here with the already existing plexus, or continu- 

 ing, after a longer or shorter course, from the connecting cord into 

 the lateral branches. [Filaments also arise within the ganglia.'] 

 The ganglia correspond, generally, to the intervertebral spaces, and 

 are in close relation, by means of connecting filaments, with all the 

 other ganglia of the body, like a chain. The connecting cords of 

 the two sides are associated before the os coccyx in the ganglion 

 coccygeum. 



