BONES OF THE CRANIUM 



133 



Fig. 130. — Choss-section of Cranium of Ox. 



The section cuts the posterior part of the temporal condyle and is viewed from behind, a, Body of sphenoid; b, 



bulla ossea;- c, temporal condyle; 1, dorsum sellae; 2, foramen ovale; 3, hypophyseal or pituitary fossa; 4, foramen 



orbito-rotundum; 5. optic foramina; 6, crista galli; 7, cribriform plate of ethmoid; 8, orbital wing of sphenoid; 9, 



temporal wing of sphenoid; 10, internal plate of frontal bone; 11, frontal sinus; 12, temporal process of malar bone.' 



Fig. 131. — Cross-section of Cranium of Ox. 

 The section cuts the posterior part of the temporal condyle and is viewed from in front, a, Basilar part of occipital 

 bone; b, bulla oasea; c, paramastoid process; d, meatus acuaticus externus; e, temporal fossa; 1, tympanic cavity; 2, 

 internal opening of condyloid canal; 3, internal opening of temporal canal; 4, depression for vermis cerebelli; 5, internal 

 occipital protuberance ; 6, internal plate of parietal bone; 7, internal plate of frontal bone; 8, frontal sinus; 9, petrous 

 temporal bone; 10, postglenoid process; 11, hyoid process. 



