26 LIGAMENTS AND MUSCLES OF THE HORSE. 



Insertion. — To tlie external surface and anterior border of 1st 



rib, by two slips. 

 Action. — To draw forward or fix the first rib, thus aiding in 



inspiration ; or, if the rib is fixed, to flex the neck or incline 



it to one side, according as the muscles act together or 



singly. 



9. LoNGUs Colli 



Origin.— ^vom the bodies of the fii-st 6 dorsal vertebra?, and 

 from the bodies and transverse processes of the last 6 cer- 

 vical vertebn^. 



Insertion. — To the tubercle of the atlas. 



Action. — To bend the neck downwards. 



10. Intertransvejisales Colll 

 Consists of six bundles, each having 



Origin. — From the oblique piocess of one vertebra. 

 Insertion. — To the transverse process of preceding vertebra. 

 Action. — Lateral bending of the neck. 



SUPERIOR CERVICAL REGION. 



1. Trapezius cei'vicalis, 6. Spinalis colli. 



'1. Rliomhoideus Loyigus. 1 . Ohliquus capitis anticus. 



3. Spknius. 8. Obliquus capjitis posticus. 



4 Cornple.rus (major). 9. Rectus ccqntis posticus major. 



5. Trachelomastoideus. 10. Rectus capitis posticus tniiior. 



1. Trapezius Cervicalis. 



Origin. — From the funicular portion of the ligamentum nuchae, 



as far forward as the 3rd cervical vertebra. 

 Insertion. — To the tubercle on the spine of the scapula. 

 Action. — It draws the scaj^ula forwards and upwards. 



2. Rhomboideus Longus. 



Origin. — From the funicular portion of the ligamentum nuchae, 

 as far forward as the axis. 



