70 



ANIMAL MKCIIANISM. 



This variability in the point of attachment is still very 

 noticeable in the Mmi-tendinosus muscle, which derives its 

 name fr>m the fact that in man, about half of the length 



Fin. Hi. Mn-ic-1 s ,f tin; thi^'l: in 111:111. The xnr'< /(/'.< muscle (alxive) and 

 tlir rectiu iiitrrnnt (hi-lowi. are darkly .shaded, that they may lie inure 

 nsily n ni/.,'d 'I'll rcjtus intermix is, at its lower extremity, pro- 

 vided with a l'>n^ ti'iidon; its tlcsliy |iart is sliort, which is in liarni'iiiv 

 with thr sluiht I'Xlcnt nf inciM-MH'iit in this inus -I' 1 , the attachment f 

 whi.-.i is MTV !! so t<> the knee. Tin; sai't"i'ius inusclo is i>rovided with 

 a short tendon at its inferior attaehinent. 



of the musclo is occupied by the tendon. In fact, the inferior 

 attachments of the scun-trinliHaxits in man is very close to the 

 ar'iciilatiun of tlio km-e, but in apes, where it is attached 

 ln\\cr <lo\\ 11, tin- mil-lie has almost entirely lost its tendon; 

 it is altogether lost in the greater part of other mammals, in 

 (lie ( 'u.iita, for example. 



