What is Diploic?
or dip·lo·ë (dĭp′lō-ē′) The spongy, porous, bony tissue between the hard outer and inner bone layers of the cranium. [Greek diploē, a fold, doubling, from feminine of diploos, twofold; see dwo- in Indo-European roots.]
Which bones have a diploe?
The diploe houses and protects the red bone marrow only found in hip bones, ribs, sternum, vertebrae, and ends of long bones, in adults. Its fluid-filled spaces reduce the weight of most bones, allowing them to be more easily moved and supported by skeletal muscles. It is similar to the medullary cavity in long bones.
What is vault in cranial cavity?
The cranial vault, also known as the skull vault, skullcap or calvaria, is the cranial space that encases and protects the brain together with the base of the skull.
What is Cancelous bone?
Cancellous bone is the meshwork of spongy tissue (trabeculae) of mature adult bone typically found at the core of vertebral bones in the spine and the ends of the long bones (such as the femur or thigh bone).
Where do diploic veins drain?
It is located in the diploë of the occipital bone. This vein drains either extracranially into the occipital vein, or intracranially into the transverse sinus or the confluence of sinuses.
Where is the Diploic vein located?
The diploic veins are large, thin-walled valveless veins that channel in the diploë between the inner and outer layers of the cortical bone in the skull. They are lined by a single layer of endothelium supported by elastic tissue. They develop fully by the age of two years.
Is Diploe found in flat bones?
Flat bones of the skull are organized into two layers or tables (outer and inner) of compact bone with cancellous (spongy) bone between them. The cancellous bone within the flat bones of the skull is termed diploe (Gk: ‘between + fold’) and consists of red bone marrow sandwiched between the tables of compact bone.
What is fracture of vault of skull?
Cranial vault fracture. A fracture of one or more of the cranial vault bones (frontal, parietal, temporal, sphenoid, and occipital bones). Most commonly involves the frontal and parietal bones. Depending on the mechanism of injury, cranial vault fractures can be linear or depressed.
What is cranial vault reconstruction?
Cranial vault remodeling, commonly called cranial vault reconstruction, involves the reshaping of cranial bones in a single stage surgery. This surgery is often used when more than one cranial suture closes prematurely.
