Medical Definition of Lesser wing of sphenoid bone

1. One of a bilateral pair of triangular, pointed plates extending laterally from the anterolateral body of the sphenoid bone. Forming the posteriormost portion of the floor of the anterior cranial fossa, their sharp posterior edge forms the sphenoidal ridge separating anterior and middle cranial fossae. The medial end of the lesser wing attaches to the body by means of two pedicles, thus forming the optic canal. The wing itself forms the superior margin of the supraorbital fissure. Synonym: ala minor ossis sphenoidalis, ala orbitalis, Ingrassia's apophysis, Ingrassia's wing. (05 Mar 2000)

Lexicographical Neighbors of Lesser Wing Of Sphenoid Bone

lesser scaup duck
lesser sciatic notch
lesser spearwort
lesser splanchnic nerve
lesser spotted woodpecker
lesser spotted woodpeckers
lesser superficial petrosal nerve
lesser supraclavicular fossa
lesser trochanter
lesser tubercle of humerus
lesser tuberosity of humerus
lesser twayblade
lesser tympanic spine
lesser whitethroat
lesser wing of sphenoid bone (current term)
lesser wintergreen
lesser yellow trefoil
lesser yellowlegs
lesser zygomatic muscle
lesson plan

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