On the frontal bone

Frontal bone

The frontal bone is a bone in the human skull that resembles a cockleshell in form, and consists of two portions:* a vertical portion, the squama frontalis, corresponding with the region of the forehead....

, on either side of the frontal suture

Frontal suture

The frontal suture is a dense connective tissue structure that divides the two halves of the frontal bone of the skull in infants and children. It usually disappears by the age of six, with the two halves of the frontal bone being fused together...

, about 3 cm. above the supraorbital margin, is a rounded elevation, the frontal eminence (tuber frontale).

These eminences vary in size in different individuals, are occasionally unsymmetrical, and are especially prominent in young skulls

Human skull

The human skull is a bony structure, skeleton, that is in the human head and which supports the structures of the face and forms a cavity for the brain.In humans, the adult skull is normally made up of 22 bones...

; the surface of the bone above them is smooth, and covered by the galea aponeurotica

Galea aponeurotica

The galea aponeurotica is a tough layer of dense fibrous tissue which covers the upper part of the cranium; behind, it is attached, in the interval between its union with the Occipitales, to the external occipital protuberance and highest nuchal lines of the occipital bone; in front, it forms a...

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