470 



A. — Muscles of the Rip Joint. 



1. M. iliacus, a, 1*71 oz. 



M. psoas inagnus, ... a, 0*57 oz. 



M. psoadiliacus, .... a, 2*28 oz. 



• • • ' b > ' ' Von)- • < ^oz. 

 . . . . c, . . 1-00J 



The iliacus takes its origin from the surface of the ilium, marked in 

 Fig. 25, and the psoas magnus from the bodies of the last two lumbar 

 vertebrae. 



2. M. pectinceus, ..... a, 0-36 oz. 



b, . . 0-201 



c, . . 0-31/ * ' u ^ oz - 



This muscle takes its origin from the pectineal line, behind the spine 

 of the pubis, and acts as one of the depressors of the marsupial bones ; 

 it is inserted into the second fourth of the linea aspera. 



3. M. adductor brevis, ... a, ....... 0*25 oz. 



• • • b > • • °™\ . . 0-21 oz. 

 „ . • . c, . . 0-17J 



This adductor takes its origin from the anterior line of the pubis, 

 inside the adductor magnus, and is inserted into the upper fourth of the 

 linea aspera. It acts as a depressor of the marsupial bone. 



4. M. adductor magnus, . . a, 5*22 oz. 



. 2-96 oz. 



b, . . 3-53' 

 . . . c, . . 2-39. 



The adductor magnus takes its origin from the anterior edge of the 

 pubis, from the base of the marsupial bone, from the symphysis pubis, 

 and from the top of the pubic arch ; and is inserted into the whole 

 length of the linea aspera. It acts as a depressor of the marsupial bone. 



5. M. adductor longus, ... a, ....... 3*42 oz. 



- - - h > - • , . V93oZt 



„ . . . c, . . 1-56J 



This muscle takes its origin from the anterior two thirds of the pubic 

 arch, and is separable with difficulty from the adductor magnus, over 

 which it is folded like the double adductor longus in the Emu ; it is in- 

 serted above the back of the inner condyle into the lower fourth of the 

 femur. 



