A combined anatomical structure or region involving both the ethmoid and sphenoid bones of the skull.
Compound of 'ethmo-' (from Greek ethmos, sieve) and 'sphenoid' (from Greek sphenoeides, wedge-shaped). This term describes the anatomical relationship between these two adjacent cranial bones.
In your skull, the ethmoid bone (shaped like a sieve) sits right next to the sphenoid bone (shaped like a wedge), and together they create a crucial area where your brain meets your face!
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