142 SKELETON OF THE OX 
upper and lower parts than in the horse. The mastoid foramen is at the junction 
of the occipital and temporal bones; it is frequently very small. 
Fic. 138.—CRaAnivuM oF JERSEY Cow, NucuHat View. THE Fic. 139.—CraniuM oF Potten ANGus Cow, NucHau 
GREATER Part OF THE PROCESSUS CORNUS HAS BEEN View. 
Sawn Orr. 
1, Foramen magnum; 2, occipital condyle; 3, paramastoid process; 4, bulla ossea; 5, meatus acusticus externus; 
6, mastoid foramen; 7, external occipital protuberance; 8, median occipital crest; 9, linea nuchz superior; 10, frontal 
eminence. 
Dorsal meatus 
Middle meatus 
Nasal bone 
Sutural bone ae?) 
Mazxilla GA bX Basal lamella 
Tentral part of ventral 
turbinate 
Fic. 140.—Cross-sectTion or NASAL ReGcion or SkuLL oF Ox. Section Passes THrovuGH Factat TuBeROSITY AND 
Tuirp Caeek Toorn. 
1, Cartilage of septum nasi; 2, vomer; 3, ventral meatus; 4, anterior extremity of maxillary sinus; 5, palatine 
sinus; 6, infraorbital canal and nerve; 7, palatine process of maxilla. Dotted lines indicate mucous membrane which 
closes gap in bony floor of nasal cavity. 
The cranial cavity is shorter and its long axis is more oblique than in the horse, 
but it is relatively high and wide. The anterior fossa lies at a much higher level 
