154 



SKELETON OF THE DOG 



Cranium 

 The occipital bone is similar in position to that of the horse. The crest is 

 prominent, anguhir, and directed baclvward. Just below the crest are two rough 



Fig. 122. — Base or Skull of Dog, without Mandible. 

 /, Occipital; //, tymiianic part of temporal; 11a, squamous part of temporal; Ilh, mastoid part of tem- 

 poral; ///, sphenoid; IV , pterygoid; T', palate bone; VI, vomer; VII. malar; ^'III, zjgomatic arch; IX, inner 

 wall of orbit; A', palatine process of inaxilla; A'7, premaxilla; XII, orbital cavity; 1,1, tubercles above foramen 

 magnum; 2, foramen magnum; 3, occipital condyle; 4. notch between occipital condyles; 5, condyloid fossa; 

 6, hypoglossal foramen; 7, paramastoid (styloid, jugular) process; 8, for. lacerum and posterior opening of carotid 

 canal; 9, petro-occipital synchondrosis; 10, petro-tympanic fissure; 11, tubercle; 12, bulla ossea; 13, muscular 

 process of petrous; 14, carotid foramen; Id, osseous Eustachian tube; 16, postglenoid process; 17, glenoid 

 cavity; 18, for. ovale; 19, posterior opening of alar canal; 20, external opening of parieto-temporal canal; 21, 

 stylomastoid foramen; 22, external auditory meatus; 23, temporal crest; 24, zygomatic process of temporal 

 bone; £5, body of postsphenoid; 26, body of presphenoid; 27, anterior opening of alar canal; 28, for. lacerum 

 orbitale; 29, optic foramen; SO, hamulus of pterygoid; 31, horizontal part of palate bone; 32, perpendicular 

 part of palate bone; 33, median palatine suture; 34, palato-maxillary suture; 35, posterior nasal spine; 36. 

 anterior palatine foramen; 37, palatine groove; 3S, alveolar border of maxilla; 39, palatine process of maxilla; 

 40, pterj'goid process of maxilla; 41, palatine fissure; 4^, body of premaxilla; 4'3. palatine process of premaxilla; 

 .^^, alveolar border of premaxilla; .^5, supraorbital process of frontal bone. (Ellenberger-Baum, Anat. d. Hundes.) 



imprints or tubercles for muscular attachment. The surface below these is convex 

 from side to side and concave from above downward. On either side, at the junction 



