foramen spinosum


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Related to foramen spinosum: Internal acoustic meatus, jugular foramen, stylomastoid foramen, hypoglossal canal, Foramen lacerum, Foramen rotundum, carotid canal

fo·ra·men spi·no·'sum

[TA]
an opening in the base of the greater wing of the sphenoid bone, anterior to the spine of the sphenoid, transmitting the middle meningeal artery, and the meningeal branch (nervus spinosum) of the mandibular nerve.

foramen spinosum

a small opening near the posterior angle of the greater wing of the sphenoid bone. It is the smallest of three pairs of sphenoidal foramina that transmit nerves and blood vessels.

for·a·men spi·no·sum

(fōr-ā'mĕn spī-nō'sŭm) [TA]
An opening in the base of the greater wing of the sphenoid bone, anterior to the spine of the sphenoid, transmitting the middle meningeal artery.

foramen spinosum

The hole in the outer edge of the greater wing of the sphenoid bone through which the middle meningeal artery passes as it enters the middle cranial fossa. It is just lateral to the foramen ovale.
See also: foramen