Frontal bones

Frontal bone
Position of the frontal bone (highlighted in green).
19th Century skull showing sword-blade trauma on frontal bone.
Details
Articulations	Twelve bones: the sphenoid, the ethmoid, the two parietals, the two nasals, the two maxillæ, the two lacrimals, and the two zygomatics
Identifiers
Latin	Os frontale
MeSH	A02.835.232.781.375
TA	A02.1.03.001
FMA	52734
Anatomical terms of bone []

The frontal bone is a bone in the human skull. The bone consists of three portions. These are the squamous part, the orbital part, and the nasal part, making up the bony part of the forehead, part of the bony orbital cavity holding the eye, and part of the bony part of the nose respectively. The name comes from the Latin word frons (meaning "forehead").

The frontal bone is made up of three parts. These are the squamous part, the orbital part and the nasal part. The squamous part marks the flat and also the biggest part, and the main region of the forehead. The orbital part is the horizontal and second biggest region of the frontal bone. It enters into the formation of the roofs of the orbital and nasal cavities. The nasal, the smallest, part articulates with the nasal bone and the frontal process of the maxilla to form the root of the nose.

The border of the squamous part is thick, strongly serrated, bevelled at the expense of the inner table above, where it rests upon the parietal bones, and at the expense of the outer table on either side, where it receives the lateral pressure of those bones; this border is continued below into a triangular, rough surface, which articulates with the great wing of the sphenoid. The posterior borders of the orbital plates are thin and serrated, and articulate with the small wings of the sphenoid.

Coronal suture separates frontal bone and parietal bones.

Sphenofrontal suture separates frontal bone and sphenoid bone.