EXPLANATION OF FIG. 1 



Head and Neck 



1, OS incisivum — premaxilla: 2, anterior nasal opening; 3, os nasale 

 — nasal bone; 4, os lacrimale — lacrimal bones; 5, lamina perpen- 

 dicularis of the ethmoid bone; 6, os dentale — inferior maxilla or 

 lower jaw; 7, the malar bone; 8, os quadratojugal; 9, os pterygoi- 

 deum — pterygoid bone; 10, os qiiadratum; 11, os auriciilare; 12, 

 foramen or opening for the passage of the fifth nerve from the 

 cranial cavity; 13, atlas or first cervical vertebra. 



Trunk and Limbs 



14, OS carpi radiale; 15, radius; 16, first digit (thumb) — false wing 

 bone; 17, metacarpus; 18, second (middle or large) digit; 19, third 

 (rudimentary) digit; 20, os carpi ulnare; 21, os ulnae (elbow); 

 22, OS humeri; 23, dorsal (thoracic) vertebra; 24, os scapulare; 

 25, ilium; 26, foramen ischiaticum; 27, coccygeal (caudal) vertebrae; 

 28, ploughshare bone; 29, foramen obturatum; 30, ischium; 31, 

 uncinate process of the rib; 32, vertebral portion of the rib; 33, 

 OS clavicula; 34, os coracoideum; 85, femur (thigh bone) ; 36, pubis; 

 37, sternum — breastbone; 38, lateral internal process of sternum; 

 39, costal process of sternum; 40, keel of the sternum; 41, sternal 

 portion of the rib attaching to the sternum; 42, lateral external 

 process of the sternum; 43, fibula; 44, posterior process of the 

 sternum; 45, internal notch of sternum; 46, patella (knee cap); 

 47, tibia; 48. metatarsus; 49, 50, 53, principal digits; 51, rudimentary 

 digit; 52, first toe. 



