A frontal eminence (or ''tuber frontale'') is either of two rounded elevations on the

frontal bone In the human skull, the frontal bone or sincipital bone is an unpaired bone which consists of two portions.'' Gray's Anatomy'' (1918) These are the vertically oriented squamous part, and the horizontally oriented orbital part, making up the bo ...

of the

skull The skull, or cranium, is typically a bony enclosure around the brain of a vertebrate. In some fish, and amphibians, the skull is of cartilage. The skull is at the head end of the vertebrate. In the human, the skull comprises two prominent ...

. They lie about 3 cm above the

supraorbital margin The brow ridge, or supraorbital ridge known as superciliary arch in medicine, is a bony ridge located above the eye sockets of all primates and some other animals. In humans, the Eyebrow, eyebrows are located on their lower margin. Structure The ...

on each side of the

frontal suture The frontal suture is a fibrous joint that divides the two halves of the frontal bone of the skull in infants and children. Typically, it completely fuses between three and nine months of age, with the two halves of the frontal bone being fused t ...

. They are the site of

ossification Ossification (also called osteogenesis or bone mineralization) in bone remodeling is the process of laying down new bone material by cells named osteoblasts. It is synonymous with bone tissue formation. There are two processes resulting in t ...

of the frontal bone during

embryological development Prenatal development () involves the development of the embryo and of the fetus during a viviparous animal's gestation. Prenatal development starts with fertilization, in the germinal stage of embryonic development, and continues in fetal deve ...

, although may not be the first site. The frontal eminences vary in size in different individuals, are occasionally asymmetrical, and are especially prominent in young skulls. The surface of the bone above them is smooth, and covered by the epicranial aponeurosis.

References

Bones of the head and neck {{musculoskeletal-stub ru:Лобный бугор

See also

References