Sphenoid bone definitions

sphenoid bone

(from the article `skeletal system, human`) The cranium forms all the upper portion of the skull, with the bones of the face situated beneath its forward part. It consists of a relatively few ...
Found on http://www.britannica.com/eb/a-z/s/139

sphenoid bone

An irregular, wedge-shaped bone at the base of the skull (the Greek sphenoeides means 'wedgelike'). The sphenoid bone is notable in that it makes contact with all of the other cranial bones. It spans the skull laterally helps form the base of the cranium, the sides of the skull, and the floors and s...
Found on http://www.daviddarling.info/encyclopedia/S/sphenoid_bone.html

sphenoid bone

A bone of most irregular shape occupying the base of the skull; it is described as consisting of a central portion, or body, and six processes: two greater wings, two lesser wings and two pterygoid processes; it articulates with the occipital, frontal, ethmoid, and vomer, and with the paired temporal, parietal, zygomatic, palatine and sphenoidal co...
Found on http://www.encyclo.co.uk/local/20973

sphenoid bone

a single irregular, wedge-shaped bone at the base of the skull, forming a part of the floor of the anterior, middle, and posterior cranial fossae.
Found on http://www.encyclo.co.uk/local/21001

Sphenoid bone

A bone forming the central part of the base of the skull.
Found on http://www.gadsbywicks.co.uk/uploaded/3822.pdf

Sphenoid bone

Sphenoid bone: A prominent, irregular, wedge-shaped bone at the base of the skull. The sphenoid bone has been called the 'keystone' of the cranial floor since it is in contact with all of the other cranial bones. The Greek physician Galen wrote that the sphenoid bone was 'like a wedge thrust between the skull and the superior maxilla.'
Found on http://www.medterms.com/script/main/art.asp?articlekey=10465

Sphenoid Bone

The sphenoid bone is one of the cranial bones and spans the inside of the skull laterally. The sphenoid bone has four wings: two greater and two lesser. The greater wings form part of the sides of the skull, with one greater wing on each side and extending inward to form also part of the back surface of each orbital cavity. The two lesser wings for...
Found on http://www.probertencyclopaedia.com/browse/ES.HTM