6o 



EQUINE ANATOMY. 



^r//^«.— Depresses hyoid and larynx. 

 Nerve. — First cervical. 



STERNO- THYROID. 



Origin. — As preceding. 



Insertio7t. — Posterior border of thyroid cartilage. 



Action. — As preceding. 



Nerve. — First cervical. 



Fig. 6. 



LATERAL VIEW OF THE NECK; MIDDLE LAYER OF MUSCLES. 



I, Funicular portion of the cervical ligament; 2, Complexus major; 3, Complexus minor; 

 4, Rectus capitis posticus major: 5, Rectus capitis posticus minor; 6, Stylo-maxillaris; 

 7, Carotid artery; 8, Pneumogastric nerve and branch of sympathetic; g, Longus colli; 

 10, Recurrent nerve; 11, Inferior scalenus; 12, Spinalis, or transversalis colli; 13, In- 

 cision through rhomboideus and trapezius; 14, Trachea. 



OMO- HYOID. 



Origin. — Inner surface of sub-scapularis. 



Insertion. — Body of hyoid bone with sterno- hyoid (separates 

 carotid artery from jugular vein in upper half of neck). 

 ActioTi. — Depresses hyoid. 

 Nerve. — First cervical. 



