492 



under the outer head of the gastrocnemius, and under the muscular head 

 of the flexor perforatum digiti interni, and of the flexor secundus perforates 

 digiti medii), into the outer tubercle of the tibia. Its tendon of in- 

 sertion passes over the muscular head of the flexor perforates digiti 

 exierni. 



10. M. vastus internus. No. 1, I'll i . A 



..... 1-7 } • • WOoz - 

 Has an origin similar to that in the Ostrich, and is inserted into the 

 inner side of the cartilaginous patella. 



11. M. vastus internus, ISo. 2, 1*5 \ 1 ,_ n 



1-9) ' * 1,/Uoz - 



This muscle is composed of three distinct parts, occupying the 

 lower, middle, and upper thirds of the femur on its inner aspect ; these 

 parts terminate in distinct tendons, which cross each other, the upper 

 and lower passing to the lateral tubercle and head of tibia next inner 

 condyle, while the middle tendon is attached between them to the 

 tibia and to the fascia covering the patella. 



12. M. poplitcBus, 0-S) 



0-4/ ' ' 



Inserted 1 J inches down tibia. 



C. Muscles of the Heel and Foot. 

 1. M. gastrocnemius, 24-4) 



, 3i-6j • ; 



This muscle consists of four distinct parts — 



0-35 oz. 



28-00 oz. 



9-6) 

 11-6) 



P, 1-2 



1 



7 



•5 \ 



1-4/ 

 12-5\ 

 17-1 i 



Total, 



10-60 oz. 



1-35 oz. 



1«25 oz. 

 14-80 oz. 



28-00 oz. 



a. This portion takes its origin from the outer condyle (having 

 behind its head the pulley through which the tendon of the biceps 

 passes), and from the fascia covering the patella. 



/3. This part of the muscle is inseparably connected with the muscle 

 accessory to the semi-r.oembranosus ; and, in a mechanical point of 

 view, the semi, memh., and its accessory muscle, aid the gastrocnemius, 

 by their insertion into the head of (/3), which arises from, the inferior 

 prolongation on the femur, of the line of origin of the accessorius. 



