proatlas

A small, paired bony element (more rarely, having fused parts) located between the skull and the atlas in tuataras, crocodiles, chameleons, and many fossil reptiles; it is uncommon in turtles and mammals (hedgehog). The proatlas apparently develops from the ossified neural part of the sclerotome. Externally it resembles the neural arch of the vertebra, since it articulates anteriorly with the lateral occipital bone and posteriorly with the anterior articular process of the atlas.

유형 Bone
상위 구조물 cervical vertebra

자주 묻는 질문

What is the proatlas?
A small, paired bony element (more rarely, having fused parts) located between the skull and the atlas in tuataras, crocodiles, chameleons, and many fossil reptiles; it is uncommon in turtles and mammals (hedgehog). The proatlas apparently develops from the ossified neural part of the sclerotome. Ex

관련 구조물

mucus body coating mucous body coating mucus cocoon mucous cocoon Mullerian duct ductus paramesonephricus multi cell part structure cell part cluster multicellular anatomical structure multicellular structure multilaminar epithelium laminated epithelium multi-tissue structure multi-tissue structures multi-unit eye

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Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.