Injury during birth, head trauma, vitamin A toxicity, separated or malformed sutures, application of pressure, or rare congenital conditions can cause indentations in the skull, according to Healthline. When one of the skull's bones cracks, the depressed skull fracture sometimes dents inward, according to Drugs.com.Continue Reading
As children develop, the six bony plates in the skull normally fuse together to form a suture, strong and flexible tissues, at the edges of the plates, according to Healthline. In rare cases, the sutures separate, causing large gaps in the skull that sometimes form an indentation or bulging area, most notably on the top of the head. Hypervitaminosis A is toxic levels of vitamin A that in children and infants can cause softening of the skull bone and bulging of the soft spot at the top of the head.
Positional plagiocephaly, prolonged pressure to the skull while in the uterus or during birth, is the most common cause of skull deformities in children, according to the Craniofacial Center. A less common cause of dents and bulges in the skull is craniosynostosis, in which one or more of the cranial sutures prematurely fuses together. Though the sutures that connect the skull bones cannot be pulled apart once formed, injury or trauma can cause misalignment of the cranial plates, leading to indentations and bumps in the skull, notes Van Family Chiropractic and Wellness Center.Learn more about Bones
If a baby's skull hardens or closes along any of the sutures or the soft spot, than it can affect the growth of the child's brain because nearly 80 percent of the human brain's growth occurs from birth to 3 years old, according to the UNC School of Medicine. In addition to limiting the size of the brain, it can cause the brain to not form correctly and can be the indicator or cause of a number of syndromes or learning issues.Full Answer >
According to About.com, the odontoid process serves as a pivot point for the skull and first cervical vertebrae, which allows the head and neck to rotate. The odontoid process is a projection that grows off the front portion of the second cervical vertebrae, which is also called the axis.Full Answer >
Jawbone pairing in the skull refers to the two bones of the maxilla and the mandible. The maxilla is nonmoveable, fixed and comprises upper jawbone and upper teeth. The mandible, the only bone in the skull that is moveable, is the mandible's companion.Full Answer >
The bones of the skull change as an individual grows older. Plastic surgeons studying humans using three-dimensional CAT scans note several important changes as people grow older. According to NPR, these changes show up primarily in the eye, the cheek area and the jaw. These doctors attribute the "windswept" look of individuals with face-lifts and the deep-set eyes in older people to these changes.Full Answer >