Bones of the skull, separated; front view. 1. Frontal
bone; 2. portions of the parietal bones; 3. malar or cheek
bones; 4. nasal bones; 5. superior maxillary or bones of
the upper jaw; 6. the vomer; 7. the inferior maxillary or
bone of the lower jaw.
Bones of the skull separated; side view. 1. Frontal
bone; 2. parietal bone; 3. occipital bone; 4. temporal
bone; 5. nasal bone; 6. malar bone; 7. superior maxillary
bone; 8. the unguis; 9. the inferior maxillary bone.
Bones forming the base of the skull; viewed from the
inside. 1. Occipital bone; 2. temporal bones; 3. sphenoid
bone; 4. ethmoid bone; 5. superior maxillary bones, or
bones of the upper jaw; 6. malar or cheek bones; 7. foramen
magnum.
62. The bones of the cranium are eight in number, six of which are proper to the cranium, and two are common to it and to the face. The six bones proper to the cranium are the frontal (fig. XXXVII. 1), the two parietal (fig. XXXVI. 2), the two temporal (fig. XXXVIII. 4), and the occipital (fig. XXXVIII. 3); the two common to the cranium and face are the ethmoidal (fig. XXXIX. 4), and the sphenoidal (fig. XXXIX.3). The frontal bone forms the entire forepart of the vault (fig. XXXVII. 1); the two parietal form the upper and middle part of it (fig. XXXVIII. 2); the two temporal form the lower part of the sides (fig. XXXVIII. 4); the occipital forms the whole hinder part, together with a portion of the base (figs. XXXVIII. 3, XXXVI. 3, XXXIX. 1); while the ethmoidal forms the forepart, and the sphenoidal the middle part of the base (fig. XXXIX. 3, 4).
