304 JoUKNAI. OK C(1M1*AKAT1\ K X IC L :iU)1.0(, V . 



N. PERONEUS. 



This nerve lies entad of the insertion third of the M. 

 biceps and ectad of the M. gastrocnemius, which muscle it 

 crossesa bout 10 mm. peripherad of the caudal condyle. As 

 the nerve dips between the M. peroneus longus and the 

 M. peroneus tertius, the 



N. MUSCULO-CUTANEUS 



(Fig. mus.-cut.) takes its origin and has its course entad of 

 the M. peroneus, apposed to the anterior tibial artery; it 

 becomes ectal (superficial) with the artery about midway 

 between the knee and the ankle, or near the tendinous part 

 of the M. peroneus longus; following the artery its ramuli 

 may be traced to the integument upon the dorsum of the foot 

 and the second, third and fourth toes. Its caudal filaments 

 anastomose with the short saphenous nerve. Ten mm. peri- 

 pherad of its origin it gives a branch to the M. peroneus 

 tertius, and 10 mm. still peripherad a large ramus passes 

 entad and lies upon the ectal surface of the M. peroneus 

 brevis, apposed to an arteriole (a branch of the anterior tibial 

 arteiy), which muscle it innerves. The trunk crosses the 

 ectal surface of the muscle (peroneus brevis) obliquely and 

 bends around the caudal border of the large tendon as it 

 passes through the sheath caudad of the malleolus; it then 

 lies entad of the tendon and upon the ectal surface of the 

 short extensors of the toes, which muscles it penetrates, 

 lying between the fourth and the fifth metatarsalia, and entad 

 of the tendon to the fifth toe, bnt ectad of the one to the 

 fourth toe at the distal end of the metatarsale, at which point 

 it joins a ramus of the ( ?) nerve, thence it is distributed to 

 the integument of the fourth toe. 



The nerve trunk at the origin of the musculo-cutaneous 

 branch gives a ramus to the overlying jM. peroneus longus, 

 which nerve accompanies an arteriole from the anterior tibial 

 artery. Entad of the M. peroneus longus with the last 



