#Anatomy #Anterior #cranial #Fossa
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Anterior cranial fossa
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The anterior cranial fossa (Latin: fossa cranii anterior) lies on the highest degree of the inner cranial base and is fashioned by the cribriform plate of the ethmoid bone, the orbital plate of the frontal bone, and the lesser wings of the sphenoid.
The anterior cranial fossa is bounded anteriorly and laterally by the frontal bone, inferiorly by the orbital plate of the frontal bone, the cribriform plate, and crista Galli of the ethmoid bone, and by the lesser wings and the anterior facet of the physique of the sphenoid.
Borders
The borders of the anterior cranial fossa are the next:
anterior and lateral: the internal floor of the frontal bone;
posteromedial: limbus of the sphenoid bone;
posterolateral: lesser wings of the sphenoid bone;
inferior: an orbital plate of the frontal bone, cribriform plate and crista Galli of the ethmoid bone, anterior elements of the physique, and lesser wings of the sphenoid bone.
Contents
The anterior cranial fossa incorporates the next elements of the mind:
the frontal lobe of the cerebral cortex,
olfactory bulb,
olfactory tract,
orbital gyri.
Openings
There are a number of openings connecting the anterior cranial fossa with different elements of the cranium, and these are the next:
anterior ethmoidal foramen,
cribriform foramina.
The paired anterior ethmoidal foramen connects the anterior cranial fossa with every orbit and transmits the anterior ethmoidal artery, nerve, and vein.
The cribriform foramina are the openings within the cribriform plate of the ethmoid bone, which join the anterior cranial fossa with the nasal cavity and transmit the olfactory nerves.
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