THE MUSCLES OF THE LOWER EXTREMITY. 201 



tlie broad tendinous expansion, about opposite the junction 

 of the lower and middle thirds of the tibial shaft. 



The internal head arises from the outer surface 

 of the inner condyle of the femur, and rather more 

 posteriorly in point of situation than the corresponding 

 origin of the external head. It is broad and more 



Fig.Sf. 



Fi^. S9. 



Fig. 55. — Anterior view of tarso-metatarsus of a Raven. 



Fig. ■^^ — Posterior view of tlie same bone. 



Fig. #7. — The summit of the same seen from above. 



Fig. 58.— Basal joint of hallux, seen from above ; the joint taken from the same 



foot. 

 Fig. 59. — The same bone seen fi'om beneath. 



In the figures of the tarso-metatarsus the accessory or liallux metatarsal bono 

 is in situ. Drawings designed to show tlie origin and insertion of muscles ; and 

 all life-size, by the author, from his own dissections. 



fleshy in character, while the distal end of the adductor 

 niagnus muscle makes a tendinous connection with the 

 outer edge of this head, close to its origin, in a manner 

 already described above. This internal, or what is really, 

 more correctly speaking, the middle division of the 

 gastrocnemius is the smallest by all odds. Its fibres 

 pass directly down the middle of the back of the 



