MUSCLES OF THE LOWER EXTREMITY. 



223 



LEG. 



Anterior tibial Region. 



Tibialis anticus, 

 Extensor longus digitorum, 

 Peroneus tertius, 

 Extensor longus pollicis. 



Fibular Region. 



Peroneus longus, 

 Peroneus brevis. 



Posterior tibial Region. 



Superficial Group. 

 Gastrocnemius, 

 Plantaris, 

 Soleus. 



Deep [posterior] layer. 



Popliteus, 



Flexor longus pollicis, 

 Flexor longus digitorum, 

 Tibialis posticus. 



FOOT. 



Dorsal Region. 

 Extensor brevis digitorum, 

 Interossei dorsales. 



Plantar Region. 



First Layer. 

 Abductor pollicis, 

 Abductor minimi digiti, 

 Flexor brevis digitorum. 



Second Layer. 



Musculus accessorius, 

 Lumbricales. 



Third Layer. 

 Flexor brevis pollicis, 

 Adductor pollicis, 

 Flexor brevis minimi digiti, 

 Transversus pedis. 



Fourth Layer. 

 Interossei plantares. 



Gluteal Region. 



Gluteus maximus, Obturator internus, 



Gluteus medius, Gemellus inferior, 



Gluteus minimus, Obturator externus, 



Pyriformis, Quadratus femoris. 

 Gemellus superior, 



Dissection. The subject being turned on its face, and a block 

 placed beneath the os pubis to support the pelvis, the student com- 

 mences the dissection of this region, by carrying an incision from 

 the apex of the coccyx along the crest of the ilium to its anterior 

 superior spinous process ; or vice versa, if he be on the left side. He 

 then makes an incision from the posterior fifth of the crest of the 

 ilium, to the apex of the trochanter major this marks the upper 

 border of the gluteus maximus; and a third incision from the 



