186 



MAMMALIAN ANATOMY 



do not articulate together, therein resembling only the lachrymals, 

 the malars, and the maxillo-turbinals, but are separated above by 

 the parietals and below by the sphenoid and the occipital. 



Each temporal bone lies in front of the occipital and the parietal, 

 and behind the sphenoid, the parietal, and the malar. The external 

 surface forms the lower posterior part of the side of the skull and 

 enters into the formation of the temporal fossa. It gives off, midway 

 in front, a stout, curved, zygomatic process, which has on its under 



FIG. 124. 



SIDE VIEW. 



LOWER VIEW. 

 POSITION OF TEMPORAL BONE. 



In the right hand figure the auditory bulla of the left temporal is removed. 



surface the glenoid cavity for the articulation of the lower jaw with 

 the skull, and is prolonged forward to join the zygomatic process 

 of the malar to form the zygomatic arch. The external ear is 

 attached behind the zygomatic process around the large opening, 

 the external auditory meatus. Behind the meatus is fastened the 

 upper end of the chain of hyoid bones which support the tongue. 

 The temporal appears on the base of the skull in the form of a 

 large, ovoid, auditory bulla. In the cranial cavity the temporal is 

 part of the floor and side-walls of the middle and posterior cranial 



