588 



MUSCLES OF MAN 



CHAP. 



the greatest stress is laid in walking. As to muscles, the glutaeus 

 raaximus is more developed in Man the Ape which most nearly 

 approaches him being the Gorilla, in which animal the life is 

 less thoroughly arboreal than in some others. The so-called 

 "scansorius" is only present in Man as an occasional occurrence. 



tb 



FIG. 283. Skeleton of the left pes of a Chimpanzee. (Dorsal aspect.) as, Astragalus ; 

 cb, cuboid ; cl, calcaneum ; ec, ectocuneiform ; en, endocuneiform ; ms, mesocunei- 

 form ; nv, navicular ; I-V, digits. (From Wiedersheim's Structure of Man.) 



The rudimentary character of the ear muscles for the movement of 

 the external ear in Man has often been insisted upon, as also 

 their occasional functional activity. But here and elsewhere, so 

 numerous are the abnormalities, that "the gap which usually 

 separates the muscular system of Man from that of the Anthro- 

 poids appears to be completely bridged over." These are words 

 of Professor Wiedersheim quoted from Testut, and express a final 

 summary of the matter of muscles in Man and the Apes. 



