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Foramen cecum of frontal bone
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:watermark(/images/watermark_only_413.png,0,0,0):watermark(/images/logo_url_sm.png,-10,-10,0):format(jpeg)/images/anatomy_term/foramen-caecum/tjotc7bTpS7aMWJGNQcheA_Foramen_caecum.jpg "Foramen cecum of frontal bone (Foramen caecum ossis frontalis); Image: Yousun Koh"){kind=logo}
The foramen cecum is a small midline opening in the anterior cranial fossa, between the frontal and ethmoid bones. It is located at the base of the frontal crest, a midline bony ridge of the frontal bone, and just anterior to the crista galli, a thick, bony midline projection from the ethmoid bone.
The foramen cecum serves as a passageway for a dural diverticulum during fetal development, which typically involutes postnatally, leaving a blind-ended depression. In about 1% of adults, however, the foramen cecum remains patent and may transmit a nasal (frontal) emissary vein that connects the veins of the nasal cavities with the superior sagittal sinus.
| Terminology |
English: Foramen cecum Latin: Foramen caecum |
| Definition | Midline aperture between the crista galli and frontal bone |
| Function | Transmits emissary veins to nasal cavity |
Learn more about the foramen cecum in the following study unit:
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