THE MUSCLES II3 



(185) Internal intercostals, between ribs; retractors of the 

 ribs. 



(186) Transverse thoracic {triangularis stcrni; siernocostalis 

 internus), sternum to cartilages of ribs and fascia covering 

 internal intercostals; 



DEEP MUSCLES IN NECK VENTRAL TO VERTEBRAL 



COLUMN 



(187) Longus capitis (rectus capitis anterior major) second to 

 sixth cervical vertebrae to basioccipital and basisphenoid ; 

 depresses snout. 



(188) Longus coli, a number of separate bundles of which 

 the thoracic group arise from the first six thoracic vertebrae 

 and are inserted into the costal process of the sixth cervical 

 vertebra; and the cervical group arises from the cervical vertebrae 

 and are inserted further forward in the midline of the centra; 

 bends the neck. 



(189) Rectus capitis anterior minor, atlas to basioccipital; 

 depresses snout. 



(190) Obliquus capitis superior, atlas to mastoid process; 

 turns head laterally. 



(191) Rectus capitis lateralis, atlas to external surface of 

 jugular process; flexes head laterally. 



MUSCLES OF THE VERTEBRAL COLUMN (BODY 



REGION) 



(192) Longissimus dorsi, median division connects spinous 

 process of vertebrae with accessory and mamillary processes of 

 other vertebrae in lumbar and thoracic regions; the lateral 

 division arises from the ilium and lumbodorsal fascia and are 

 inserted into the transverse processes of the lumbar, thoracic 

 and cervical vertebrae. In the thoracic region the spinalis 

 dorsi separates off. The cervical portion is sometimes distin- 

 guished as the longissimus cervicis; and the cranial portion as the 

 longissimus capitis. Extensor of vertebral column. 



