Human Biology, 14 Edition

Published by McGraw-Hill Education
ISBN 10: 1-25924-574-8
ISBN 13: 978-1-25924-574-9

Chapter 12 - Section 12.2 - Bones of the Axial Skeleton - Check Your Progress - Page 245: 2

Answer

The bones of the cranium and face include the frontal bone, the parietal bones, the occipital bone, the temporal bones, the sphenoid bone, the ethmoid bone, the mandible, the maxillae, the zygomatic bones, and the nasal bones. The forehead is formed of the frontal bone. Parietal bones extend to the sides of the frontal bones. Occipital bone is a curved bone that forms the base of the skull. Each temporal bone is located below the parietal bones. Sphenoid bone stretches across the cranium from one side to the other. The ethmoid bone is positioned in front of the sphenoid. The mandible makes up the lower jaw and chin, while maxillae form the upper jaw and anterior portion of the hard palate. The zygomatic bones are the cheekbones, while the nasal bones make up the bridge of the nose.

Work Step by Step

The bones of the cranium and face include the frontal bone, the parietal bones, the occipital bone, the temporal bones, the sphenoid bone, the ethmoid bone, the mandible, the maxillae, the zygomatic bones, and the nasal bones. The forehead is formed of the frontal bone. Parietal bones extend to the sides of the frontal bones. Occipital bone is a curved bone that forms the base of the skull. Each temporal bone is located below the parietal bones. Sphenoid bone stretches across the cranium from one side to the other. The ethmoid bone is positioned in front of the sphenoid. The mandible makes up the lower jaw and chin, while maxillae form the upper jaw and anterior portion of the hard palate. The zygomatic bones are the cheekbones, while the nasal bones make up the bridge of the nose.
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