THE SKELETON. 
The malar bone is paired. 
3D 
It forms the cheek as well 
as the lateral and cranial border of the orbit. 
largely formed by this bone is the gygoma. 
The arch 
The process 
projecting dorsad toward the postorbital process of the 
frontal bone is the postorbital process of the malar. 
The 
masseter muscle originates on the border of the malar. 
The mandible or inferior max- 
illary is the single bone forming 
the lower jaw (Figs. 19 and 
21). It is madeup of two halves 
which are united by an immov- 
able articulation or symphysis at 
the chin. Each half consists of 
a horizontal and an ascending 
ramus. On its alveolar border 
the horizontal ramus bears three 
incisor teeth, a canine, two pre- 
molars and a molar tooth. In 
the caudal part of the medial sur- 
face of this ramus is the inferior 
dental foramen, which transmits 
the inferior dental nerve and 
artery traversing the dental canal 
extending within the bone to’ 
the mental foramen on the lat- 
eral surface near the base of the 
canine tooth. The space on the 
dorsal border between the canine 
and the first premolar tooth is 
called the diastema. 
The ascending ramus or por- 
tion of the bone caudad of the 
Fie. 20. VENTRAL ASPECT 
oF Larynx, Hyon Bones, 
AND ToncuE. The tongue 
has been cut transversely 
near its middle and its 
muscles fixing it to the 
hyoid have been removed. 
bh, Basihyal; ch, ceratohyal ; 
cr, cricoid cartilage of the 
larynx; eh, epihyal; ep, 
epiglottis ; 1g, cricothyroid 
ligament; lyh, thyrohyal ; 
rg, rings of cartilage in 
the trachea; tc, thyroid 
cartilage of the larynx; 
tm, tympanohyal; sh, 
stylohyal. 
inferior tooth is marked by six features: (1) the fossa on 
the outer or lateral surface which gives insertion to the 
