MUSCLES OF THE HUMAN BODY. 



349 



Anterior View of the Muscles of the Human Body, Fig. 6. 



a, The occipito-frontalis. 

 &, The massater. 



c, The orbicularis oris. 



d, The depressor labii in- 



ferioris. 



e, The orbicularis palpe- 



brarum. 

 /, The levator labii superi- 



oris. 



g, The zygomaticus major. 

 h, The zygomaticus minor. 

 i, The platisma myoides. 

 j, The deltoid muscle. 

 k, The pectoralis major. 

 I, The latissimus dorsi. 

 m, The biceps flexor cubiti. 

 n, The triceps extensor cu- 

 biti. 

 p, The seratus major anti- 



cus. 

 q, The obliquus abdominis 



externus. 



r, Transversalis abdominis. 

 s, w, The pronator radii te- 



res. 

 t, x, The supinator radii 



longus. 



w, The tensor vaginae femo- 

 ris. 



v, The extensor ossis met- 

 acarpi-pollicis llfcinus. 



y, The psoas magnus. 



z, The sartorius, or tailor's 

 muscle. 



#', The extensor carpi radi- 

 alis longi or. 



b', f, The annular liga- 

 ment. 



c', The palmaris brevis. 



d', The rectus femoris. 



e', The vastus externus. 



y, The vastus internus. 



g / , The extensor carpi radi- 

 alis brevior. 



h^ The tendon patella. 



I', The gastrocnemius in- 

 ternus. 



i', The triceps extensor 

 crucis. 



mf, The tibialis anticus. 



The flexor 

 pedis. 



digitorum 



What is the consequence of the continued action of the voluntary muscles ? 

 On what does muscular action depend ? What is the effect of pressure on 

 the brain ? 



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