Parietal bone definitions
| Word backwards | lateirap enob |
|---|---|
| Part of speech | Noun |
| Syllabic division | pa-ri-e-tal bone |
| Plural | The plural of parietal bone is parietal bones. |
| Total letters | 12 |
| Vogais (4) | a,i,e,o |
| Consonants (6) | p,r,t,l,b,n |
The parietal bone is one of the eight bones that make up the human skull. It is situated at the top and sides of the skull, forming the bulging shape of the head. This bone is paired, with one on each side of the skull, and it plays a crucial role in protecting the brain from injury.
Key features of the parietal bone include its four borders - sagittal, frontal, squamous, and occipital - and two surfaces, the external and internal. The sagittal suture joins the two parietal bones at the top of the skull, while the coronal suture connects them to the frontal bone in the front. These sutures are crucial for the overall structure and stability of the skull.
Structure and Function
The parietal bone serves as an anchor point for various muscles of the head and neck, including those involved in chewing and facial expressions. It also provides protection for the underlying brain tissue and supports the overall structure of the skull. In addition, this bone plays a role in maintaining the shape of the head and providing attachment points for the membranes that cover the brain.
Development and Growth
During fetal development, the parietal bone forms from a combination of membranous ossification and endochondral ossification. It grows and fuses with other skull bones over time, reaching its full size and shape in adulthood. The growth of the parietal bone is essential for the overall development of the skull and brain.
Common Conditions
While the parietal bone is a strong and resilient bone, it can still be subject to fractures in cases of severe head trauma. These fractures can vary in severity, from minor cracks to more severe breaks that require medical intervention. Additionally, certain medical conditions, such as osteoporosis, can weaken the parietal bone and increase the risk of fractures.
In conclusion, the parietal bone is a vital component of the human skull, playing a crucial role in protecting the brain and supporting the overall structure of the head. Understanding its key features, structure, function, and common conditions is essential for medical professionals and individuals interested in human anatomy.
Parietal bone Examples
- During the autopsy, the forensic pathologist examined the parietal bone to determine the cause of death.
- The parietal bone helps protect the brain by forming part of the skull.
- In infants, the fontanelle allows for flexibility as the parietal bones have not completely fused together.
- An injury to the parietal bone can result in a concussion.
- The parietal bone articulates with other cranial bones to form the head structure.
- A fracture to the parietal bone can be a serious medical condition.
- The doctor used a CT scan to assess the damage to the parietal bone.
- Skull fractures commonly involve the parietal bone due to its location.
- The parietal bone is part of the human skeleton's axial skeleton.
- Patients with osteoporosis may be at higher risk for parietal bone fractures.