Eight cranial bones, including the frontal bone, make up the skull. The name of the bone, which creates the rounded curvature of the forehead, comes from the Latin word ‘frons’, meaning forehead, which also refers to the bone.
In addition to the forehead, the bone also contributes to the skeletal structure of the nose, the upper ridge, and the roof of the eye socket. This single bone makes the skull distinctive and protects the brain’s fragile nerve system. It also supports several head muscles.
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Meaning of Frontal Bone
The frontal bone, also known as the os frontale, is an unpaired craniofacial bone that supports the forehead and forms the upper portion of the eye sockets. It partially covers the brain. It comprises two orbital parts, one squamous section, and one nasal part. Facial expression depends on the muscles surrounding and attached to the frontal bone.
The frontal bone is situated in front of the parietal bones and above the nasal bones, specifically in front of the skull. By touching the forehead, one may readily feel the bone.
It is one of the bones in the skull that surrounds the brain (neurocranium) and is composed of the following components:
The nasal portion, the squamous part, the two orbital plates, and the two zygomatic processes.
Read Also:Skull bones – Facial and Cranial Bones
Functions of the Frontal Bone
The frontal bone is one of the eight bones that make up the skull, also referred to as the brain’s protective case. The two main functions are supporting the head’s structures and protecting the brain, including the eyes and nasal passages.
Cerebrospinal fluid is located between the frontal bone and the brain. This fluid between the meninges encloses the brain. The brain is protected from damage by these cushioned layers and cerebrospinal fluid.
Although numerous nerves travel through the frontal bone to supply sensory and motor functions to the various parts of the head, neither function is provided by the frontal bone itself. The stem cells that develop into white blood cells, red blood cells, and platelets are found in the centre of the frontal bone, which has a sponge-like texture.
Finally, the frontal bone (os frontale) is significant to how we appear. It plays a vital role in our appearance, whether we have broad or high foreheads or thick, wavy, or smooth eyebrows.
Frontal bone fractures are relatively rare, mainly because it is heavier and more durable than the smaller, usually more fragile, facial bones. If not treated by a maxillofacial specialist, any fracture of the frontal bone, however, might result in long-term changes to our appearance.
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