Endochondral bone that extends forward from the frontal bones and articulates posterolaterally with the lateral ethmoids and the vomer and parasphenoid ventrally. The mesethmoid is an unpaired bone[TAO:0000323].

uberon

ethmoid

UBERON:0011238

• mesethmoid-vomer joint
• mesethmoid-lateral ethmoid joint
• mesethmoid-frontal joint
• mesethmoid-nasal joint
• mesethmoid-premaxillary joint

• mesethmoid ventral diverging lamella
• lateral mesethmoid wing
• mesethmoid cornu