234 



ANATOJIY OF VERTEBRATES. 



third cervicals, and is inserted into the same part of the occipital 

 vertebra. 



The trachelomastoiclQUs, fig. 150, 26, arises from the hypapophyses 

 of the third and second cervicals, and ascends obliquely to be 

 inserted into the mastoid. 



The scalenus, fig. 150, 34, arises from the inner border of the 

 lower three-fourths of the scapula ; its fibres emerge as it 

 advances, and deliver strips of insertion to the diapophyses of the 

 eiffhth to the second cervical inclusive. 



150 



Sido view of muscles of tlic trunk, head, nud liuilis, Einy^ Furopwa. XXXTITI. 



The stcrnomostoideus, fig. 150, 22, arises from the middle of the 

 inner surface of the cntosteruum, and is inserted into the mastoid. 



The dlaphragmaticus, figs. 148, 149, 150, 42, 42, arises by three 

 sheets from the bodies of the fifth and fourth dorsals, and from 

 the rib of the third dorsal ; the two posterior unite to apply them- 

 selves and adhere to the mesial surface of the lung ; the third 

 sweeps over to the outer surface, 42, fig. 150, and 42, fig. 151, and 

 is reflected from its lower border upon the peritoneum. 



The transijersalis ahdomiii.is, figs. 150, 151, 4i, ai'iscs along a 

 curved line on the inner surface of the fourth, fifth, sixth, and 

 seventh costal plates, extending from the end of the fourth to the 

 beginning of the seventh; also by a separate f;\sciculus from the 

 eighth rill ; and by three slender tendons from near the cardinal 

 border of ihe hyposternal ; it is inserted liy a broad tendinous 

 sheet into the mesial border of the same plastral clement, which 

 is the homologue of tlie abdominal luemapophyscs and spine 

 receiving the same insertion. 



The obliqi/us cxternus, fig. 151, 40, arises from the inner side 

 of the extremities of the last lour costal plates, and adherent 



