86 



STUDIES IN ADVANCED PHYSIOLOGY. 



two nasal bones, the two lachrymal bones, two malar bones, 

 the upper maxilla, the two palatine bones, the lower maxilla, 



Fig. 36. FRONT VIEW OF MALE SKULL AT ABOUT TWENTY YEARS. (Allen Thomson.) 



1, frontal eminence; 2, glabella, between the superciliary ridges, and above the trans- 

 verse suture of union with the nasal and superior maxillary bones ; 3, orbital arch near 

 the supraorbital notch; 4, orbital surface of great wing of sphenoid, between the sphe- 

 noidal and the spheno-maxillary fissures; 5, anterior nasal aperture, within which are 

 seen in shadow the vomer and the turbinate bones; 6, superior maxillary bone at the 

 canine fossa above the figure is the infraorbital foramen; 7, incisor fossa; 8, malar bone; 

 9, symphysis of lower jaw; 10, mental foramen; 11, vertex, near the coronal suture; 12, 

 temporal fossa; 13, zygoma; 14, mastoid process; 15, angle of the jaw; 16, mental pro- 

 tuberance. In this skull there are fourteen teeth in each jaw, the wisdom teeth not hav- 

 ing yet appeared. 



the vomer, and the two turbinates. Suspended by cartila- 

 ginous threads from the temporal bone is the hyoid bone, 

 which serves to give support to the muscles of the tongue. 

 It is entirely impossible to give any satisfactory descrip- 

 tions, and even in good pictures, any adequate notion of the 



