44 DISSECTION OF THE CAT 



along the mid-line of the under side of the man- 

 dible. It arises near the symphysis, and is inserted 

 on the basi-hyal bone. (Plate IV.) 



Reflect the genio-hyoid. 



7. The Thyro-hyoid Muscle arises from the thyroid 

 cartilage of the larynx, and is inserted on the 

 thyro-hyal bone. It appears to be a continuation 

 of the sterno-thyroid muscle. 



8. The Splenius is a large muscle which takes its 

 origin on the mid-dorsal line of the neck and from 

 the neural processes of the anterior dorsal verte- 

 brae. It is inserted on the outer part of the lamb- 

 doidal ridge of the skull. (Plate III.) 



The Masseter is the thick, oval muscle lying just 

 back of the eye. It arises from the malar bone 

 and from the zygomatic process of the temporal 

 bone, and is inserted on the outer surface of the 

 ascending ramus of the mandible. (Plates II., 

 III., and IV.) 



The Temporalis is the fan-shaped muscle cover- 

 ing the side of the skull. It arises from the skull 

 between the lambdoidal ridge and the post-orbital 

 process of the frontal bone. Its fibres converge, 

 filling up the temporal fossa, and are inserted on 

 the coronoid process of the mandible. (Plates II. 

 and III.) 



