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 or bat with its wings extended.
^OED 2nd edition, 1989.
^Entry "sphenoid" in Merriam-Webster Online Dictionary.
^Thieme Atlas of Anatomy, Head and Neuroanatomy 2011
^Chaurasia (31 January 2013). Human Anatomy Volume Three. CBS Publishers & Distributors. pp. 43–45. ISBN 978-81-239-2332-1.
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The sphenoidbone 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 sphenoid sinus is a paired paranasal sinus occurring within the body of the sphenoidbone. It represents one pair of the four paired paranasal sinuses...
perpendicularly from the regions where the body and the greater wings of the sphenoidbone unite. Each process consists of a medial pterygoid plate and a lateral...
The body of the sphenoidbone, more or less cubical in shape, is hollowed out in its interior to form two large cavities, the sphenoidal sinuses, which...
the front. Lesser wing of sphenoidbone Lesser wing of sphenoidbone Lesser wing of sphenoidbone Lesser wing of sphenoidbone This article incorporates...
The greater wing of the sphenoidbone, or alisphenoid, is a bony process of the sphenoidbone, positioned in the skull behind each eye. There is one on...
wings of the sphenoidbone that serves as the origin of the sphenomandibular ligament. Base of skull. Inferior surface. Spine of sphenoidbone marked with...
The zygomatic bone articulates with the frontal bone, sphenoidbone, and paired temporal bones, and maxillary bones. The zygomatic bone is generally described...
of sphenoidbone or ala ossis sphenoidalis can refer to: Greater wing of sphenoidbone (ala major ossis sphenoidalis) Lesser wing of sphenoidbone (ala...
angle of the parietal bone, and the mastoid portion of the temporal bone. The inferior angle is fused with the body of the sphenoidbone. The superior borders...
'Turkish saddle') is a saddle-shaped depression in the body of the sphenoidbone of the human skull and of the skulls of other hominids including chimpanzees...
projection of the sphenoidbone at the junction of the medial end of either lesser wing of sphenoidbone with the body of sphenoidbone. The bilateral processes...
The foramen rotundum is a circular hole in the sphenoidbone of the skull. It connects the middle cranial fossa and the pterygopalatine fossa. It allows...
part of the temporal bone is pyramid-shaped and is wedged in at the base of the skull between the sphenoid and occipital bones. Directed medially, forward...
zygomatic bone. Posteroinferior to the squamous is the mastoid part. Fused with the squamous and mastoid parts and between the sphenoid and occipital bones lies...
The foramen spinosum is a small open hole in the greater wing of the sphenoidbone that gives passage to the middle meningeal artery and vein, and the...
palate. The palatine bones are situated at the back of the nasal cavity between the maxilla and the pterygoid process of the sphenoidbone. They contribute...
groove is an anatomical groove in the sphenoidbone located above the attachment of each great wing of the sphenoidbone. The groove is curved like the italic...
located between the sphenoidbone, the apex of the petrous part of the temporal bone, and the basilar part of the occipital bone. The foramen lacerum...
sinuses are behind the eyes. The sinuses are named for the facial bones and sphenoidbone in which they are located. Their role is disputed. Humans possess...
include the following eight bones: 1 ethmoid bone 1 frontal bone 1 occipital bone 2 parietal bones 1 sphenoidbone 2 temporal bones The ossicles (three on...
pterygoid process of the sphenoidbone, and to the perpendicular lamina of the palatine bone. "Origin of the pterygoid bone and pharyngeal musculature...
Look up sphenoid in Wiktionary, the free dictionary. Sphenoid may refer to: Sphenoidbone, a bone in anatomy Sphenoid (geometry), a tetrahedron with 2-fold...
magnum, and tentorium cerebelli. It is formed by the sphenoidbones, temporal bones, and occipital bone. It lodges the cerebellum, and parts of the brainstem...
the lateral sellar compartment bordered by the temporal bone of the skull and the sphenoidbone, lateral to the sella turcica. The cavernous sinus is one...
cranial suture between the sphenoidbone and the zygomatic bone. Position of two bones, Animation. Sphenoidbone Zygomatic bone Sphenozygomatic suture...
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