DISSECTION OF THE DOG 



93 



Dissection. Attention Bhould now be directed t<» the Btructurea behind 

 the tibia. The disposition and Btrength of the fascia over this pari of 

 the leg calls for remark. In the proximal third of the leg, where the 



m. raftus lateralis 



n. ischiadicus - 



n. tibinlis- 



tn. temitendinogus -■ — 

 a. femoris posterior . 



n. cutaneus suroe medialit 



m. gastrocnemius 

 caput mediate 



m. flexor digitorum 



profundus 



in. adductor 



. ,. - m. semimembranosus 



Y a. femora/is 



___— - — a. poplitea 



71. peronwus 



' ' am munis 



.- in. poplitt US 



a. tibialis anterior 



- n. peroneeus profundus 

 ■ m. tibialis anterior 



, m. extensor ditjil«runt 



longus 



- _. m. extensor digiti quinti 



h. peroneeus superficiilis 



Fig. 37. — Dissection of origin of tibial and common peroneal nerves. 



calf muscles are covered by the hamstring muscles, the fascia is not notably 

 strong ; but in the distal half of the region it is thick, strong and tendinous, 

 especially over the tendo-calcaneus [Achillis] (the combined tendons of 

 gastrocnemius and plantaris muscles). In front of the tendon there is 

 a thick tendinous cord inserted into the calcaneus. 

 The small saphenous vein may be again examined and its termination 

 noted. Examine the cutaneous nerves of the region. 



