Malar Bones.—These are the cheek bones. There are two in number, situated at the upper and outer part of the face.
Palate Bones.—The palate bones, two in number are situated at the back part of the nasal fossae. Each bone assists in the formation of three cavities: the floor and the outer wall of the nose, the roof of the mouth, and the floor of the orbit.
Inferior Turbinated Bones.—The inferior turbinated bones are situated one on each side of the outer wall of the nasal fossae.
Vomer.—The vomer, a single bone, is situated vertically at the back part of the nasal fossae, forming part of the septum of the nose. It is thin and somewhat like a ploughshare in form.
The Hyoid Bone.
—The hyoid bone is named from its resemblance to the Greek letter U. It is also called the lingual bone, because it supports the tongue and gives attachment to its numerous muscles.
The omo-hyoid muscle, which crosses the carotid artery at its middle third, has its insertion with the hyoid bone.
The Bones of the Thorax.
—The Sternum or Breast Bone.—The sternum is a flat, narrow bone, situated in the median line of the front of the chest. The lower end is called the ensiform process, to which the diaphragm has its anterior attachment.
The Ribs.—The ribs, which are curved arches of bone, form the chief part of the thoracic walls. There are twelve in number on each side, although this number may vary.