What is the parietal bone?
The human skull is more than one big bone. It consists of several interconnected bones, some of which occur in right and left pairs. In fact, the parietal bone refers to one of the two flat bones on the right and left side of the head. They are large bones that together form the upper and sides of the skull. Parietal bones lie above the parietal lobe on both sides of the brain. Other skull bones include left and right temporary bones, front bone, occipital bones, sphenoid and ethmoid bone. Cranial bones are connected by fibrous joints called stitches. In newborns up to two years, these joints are formed by soft membranes called fontanels; Fontanel flexibility allows bones and brain growth. As we ripen, the stitches become stricter, which significantly reduces the amount of movement that can occur between Cranial Bones.
Parietal bone is in shape roughly like a curved rectangle. The top of the leftThe parietal bone connects with the right parietal bone to form a sagittal stitch on the roof of the skull. Towards the front of the skull, both parietal bones are joined with the front bone in the coronal stitch. At the lower edge, the parietal bones encounter temporary bones, one close to the ear, as well as the sphenoid bone that leads behind the eyes. The rear part of the parietal bone is associated with the occipital bone, which forms the back of the skull.
Like many other bones, the primary function of the parietal bone is to provide the protection of vital tissues and organs, in this case the brain. The inner surface of the parietal bones also contains numerous grooves and channels that protect the main arteries that supply oxygen and nutrients to the brain. It also works with the other bones and structures for the protection of vital nerve functions that come from the brain and cause almost every function of the body, voluntary movement and involuntary actions such as breathing.
parietal bones are commonly used as donor bone graft sites when the patient needsBeling reconstruction surgery, especially facial surgery. The surgeon removes part of the parietal bone and grabs it to the area to be reconstructed. Parietal bones are preferred because of their thickness, their proximity to the body surface, and because instead of harvesting it tends to treat faster than other common donors such as ribs or hips. In addition, harvesting of the patient's own bone tissue significantly reduces the risk of rejection after surgery.