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FishFace

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Skull Anatomy

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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

21 dpf Development

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

Info	Image Please hold mouse over images to see annotations.
21 dpf zc81Tg Alizarin red	Ventral Movie(s): 21 dpf Meckel's ventral movie
Description	By 514 hpf, Meckel’s cartilage (Mk) has grown considerably from that seen at 338 hpf. Also visible are the palatoquadrate (pq), dentary (d), premaxilla (pm), maxilla (mx), retroarticular bone (ra), anguloarticular (aa), and quadrate (q). The dentary has now grown medially in the dermis along the anterior-posterior length of Meckel’s cartilage, and is found laterally to the anguloarticular posteriorly. Note the complete articulation between bones of the jaw joint, including the quadrate, anguloarticular, and retroarticular.