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The Atlas

• About the Atlas
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Skull Anatomy

• OPT Data
• 3D Viewer

Arch 1 & 2 Development

• Pharyngeal development: Pre-skeletal
• Pharyngeal development: Skeletal

Element Development

• The palatoquadrate: associated bones and articulations
• Meckel’s cartilage: associated bones and articulations
• The hyosymplectic: associated bones and articulations
• The ceratohyal: associated bones and articulations
• The opercle: associated bones and articulations

4.5 dpf Development

[ Back to Meckel’s cartilage: associated bones and articulations]

Info	Image Please hold mouse over images to see annotations.
4.5 dpf zc81Tg Alizarin red	Ventral Movie(s): 4.5 dpf Meckel's ventral movie
Description	By 105 hpf, the retroarticular (ra) bone can be seen in the most distal perichondrium of the retroarticular process of Meckel’s cartilage.