Explanation:
A, skull;
B, lower maxillary (or jaw) at point of articulation with upper;
C, cervical vertebrae (7); D, dorsal Vertebrae;
E, lumbar vertebrae; F, sacral vertebrae ;
G, caudal vertebrae ;
H pelvic girdle, or "ossa innominata" (ilium, ischium, and pubes anchylosed);
I, femur; i, patella, or "knee pan";
J, tibia ; K, fibula;