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The sphenoid bone [note 1] is an unpaired bone of the neurocranium. It is situated in the middle of the skull towards the front, in front of the basilar part of the occipital bone. The sphenoid bone is one of the seven bones that articulate to form the orbit. Its shape somewhat resembles that of a butterfly, bat or wasp with its wings extended.
The foramen spinosum is a small foramen in the greater wing of the sphenoid bone of the skull. [ 1 ] : 509 It connects the middle cranial fossa (superiorly), and infratemporal fossa (inferiorly).
The sphenozygomatic suture is the cranial suture between the sphenoid bone and the zygomatic bone. Additional images. Position of two bones, Animation.
The pterion is the region where the frontal, parietal, temporal, and sphenoid bones join. [1] It is located on the side of the skull, just behind the temple.It is also considered to be the weakest part of the skull, which makes it clinically significant, as if there is a fracture around the pterion it could be accompanied by an epidural hematoma.
Spontaneous CSF rhinorrhoea is the most common acquired defect in the skull base bones (anterior cranial fossa) causing spontaneous nasal liquorrhea. Defects are often localized in the sphenoid bone and the ethmoid bone. [1] Congenital CSF rhinorrhoea is the least common type of CSF rhinorrhoea. [1]
The sphenofrontal suture is the cranial suture between the sphenoid bone and the frontal bone. Additional images. The skull from the side.
The neurocranium is formed by the combination of the endocranium, the lower portions of the cranial vault, and the skull roof. Through the course of evolution , the human neurocranium has expanded from comprising the back part of the mammalian skull to being also the upper part: during the evolutionary expansion of the brain, the neurocranium ...
The sphenoethmoidal suture is the cranial suture between the sphenoid bone and the ethmoid bone. It is located in the anterior cranial fossa. External links This ...