What is Glabella frontal bone?
The glabella is the smooth midline bony prominence between the supraciliary arches of the frontal bone, representing the most anterior part of the forehead when standing erect and looking straight ahead. The metopic suture traverses the glabella, between the two frontal bones.
Where is the orbital plate of frontal bone?
The bone consists of two portions. These are the vertically oriented squamous part, and the horizontally oriented orbital 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….
| Frontal bone | |
|---|---|
| FMA | 52734 |
| Anatomical terms of bone |
How does the frontal bone growth?
The mammalian skull vault consists of several membrane bones with different origins. A pair of frontal bones, which occupies the anterior part of the skull vault, is derived from cranial neural crest cells. The frontal bone primordium develops at the superciliary ridge region, then expands towards the top of the head.
What is the frontal bone called?
The frontal bone is a bone of the skull found in the forehead region. It is one of eight bones that form the cranium, or brain case. The frontal bone plays a vital role in supporting and protecting the delicate nervous tissue of the brain. It gives shape to the skull and supports several muscles of the head.
How hard is the frontal bone?
The frontal bone can resist 400 to 1000 kg before fracture, thus it is secondary to high-velocity trauma and, by nature, commonly has concomitant facial fractures. Fractures of the frontal bone area frequently extend to the orbital roof, nose, dura, and frontal lobe.
Does the frontal bone contain a sinus?
Paranasal sinuses are named after the bones that contain them: frontal (the lower forehead), maxillary (cheekbones), ethmoid (beside the upper nose), and sphenoid (behind the nose).
What is the purpose of frontal bone?
The primary functions of the frontal bone are to protect the brain and support the structures of the head, such as the nasal passages and eyes. In between the brain and frontal bone is cerebrospinal fluid.
What facial bone contains a sinus?
The large facial bones that surround the nasal cavity – the frontal bone, the maxilla, the sphenoid and ethmoid bones – are hollow to a greater or lesser extent. The hollow spaces in these bones contain the paranasal sinuses, which in the healthy living body are filled with air.
