HUMERUS 



439 



HUMERUS, the upper arm-bone in Birds, articulating by its 

 head with the coracoid and scapula at the glenoid cavity, and by 



\S,anc.L 

 I Tr. r. 



Tr. u 



S.anc.m. 



F.pn. 



Left Humerus of Goose. Lateral and median aspects. 



Cr. inf. 



Tb. e. £''• ■y/. 



Left Humerus of Raven. Lateral and median aspects. 



Cr. inf. 



Tb. i. 



Ir. I. Insertion of M. brachialis inferior; Cap. Caput humeri; Cr. inf., Cr. I. and Cr. sup. 

 Crista inferior, lateralis and superior ; Ect. and Eiitcp. Ectepicondylar and Entepicondylar pro- 

 cess ; F. pn. Foramen pneumaticum ; Inc. c. Incisura capitis ; lat. d. Insertion of M. latissimus 

 dor.si ; pcct. Insertion of M. pectoralis ; S. anc. l, S. anc. m, and S. tr. Sulcus anconei lateralis, 

 iriedius and transversus ; sup. c. Insertion of M. supracoracoideus ; Tb. e., Tb. i. and Tb. m. Tuber- 

 culum externum, internum, and medium ; T. or Tr. r. and T. or Tr. it. Trochlea radicalis and 

 ulnaris. 



