444 



THE AXATO:\IY OF THE TTORSE 



shoulder joint, and proven tin,;,' it from Ixiiii,' pincliod in the motions 

 of tlio joint. The omission of the seapulo hunieralis externus by our 



chief EngUsh authority is most unaccountable, 

 as it is recognized by all previous writers on 

 the subject. 



EXTERNAL SCAPULAR 

 REGION 



Antf.a RPiXATi's lies upon the anterioi 

 fossa of the scapula. Or'ujin — from the an- 

 terior angle, border, fossa, and anterior sur- 

 lace of the spine of the scapula. Insertion — 

 1 lifid : one part to the outer, the other to the 

 inner tubercle at the head of the humerus, 

 tlie insertion extending from the tubercular 

 summits to a roughened depression, just 

 posteriorly placed to each. This bifid in- 

 sertion embraces the tendon of the flexor 

 brachii. Action — to draw the scapula into 

 the same line with the humerus. 



PosTEA SPiNATUS is situated upon the pos- 

 terior fossa of the scapula. Origin — from 

 the posterior angle, border, fossa, and pos- 

 terior surface of the spine of the scapula. 

 Insertion — bifid : one portion to the postero- 

 external tubercle ; tlie other is tendinous, 

 and passes over the posteroexternal tubercle 

 to a depression just below the outer tubercle. 

 Action — to fix the scapula on the humerus or 

 vice versd. 



h 



flo. c2. — e terjjal vikw of thk mcscles o? tke fork 

 Extremity 



1. Antca sjiinatus. 



2. Postea sjiinatus. 



8. Soapulo huinonilis extenius. 



4. Teres externus vel minor. 



5. Insertion of antca sjiinatns. 



C. Hunionilis exti'rnus and tloxor brachii abova. 



7. Sc'ai'ulo ulnnris. 



8. Triccjis extensor brachii. 



9. Extensor metacarjii niagnus. a. c. Tendon of the same 



receiving ligamentous slij'S. 



10. Extensor pedis. 



11. Extensor sullraginis. 



12. Flexor metaeariii externus. 



13. Flexor pedis perfonms. e. Tenilon of the s.ime. 



14. Flexor i>edis perforatus. d. Tendon of the same. 



