The frontal bone articulates posteriorly with the two parietal bones through the coronal suture. This process is called the zygomatic process of the frontal bone. A single occipital bone forms the base of the skull, and the frontal bone forms the forehead. Superiolateral to the orbit a process of the frontal bone articulates with the zygomatic bone (cheekbone). The neurocranium consists of two temporal bones situated to the base and side of the skull, and two parietal bones that make up the roof of the skull. Areas of the frontal bone just lateral to the glabella are filled with rather large cavities called the frontal sinuses.

The smooth area between the orbits is called the glabella. The supraorbital margin is penetrated by the supraorbital foramen through which nerves and blood vessels pass. Notice how this bone forms most of the roof of the orbit which houses the eyeball and immediately above the orbit, forms the supraorbital margin which lies directly beneath the eyebrows. The frontal bone forms the anterior portion of the cranium commonly referred to as the forehead. These openings are termed foramina (singular, foramen). These openings are essential for nerves and blood vessels to enter and leave the cranium. Notice that there are numerous openings or 'holes' in the skull. Except for the lower jawbone, all the bones of the skull are linked together by interlocking joints called sutures. The skull is comprised of two main groups of bones, the cranial bones which form the cranium (a set of bones that forms the box enclosing the brain) and the facial bones (the bones comprising the anterior surface of the skull including the jaw). The frontal suture is a fibrous joint that divides the two halves of the frontal bone of the skull in infants and children.

Frontal bone skull