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FishFace

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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

14 dpf Development

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

Info	Image Please hold mouse over images to see annotations.
14 dpf zc81Tg Alizarin red	Ventral Lateral Movie(s): 14 dpf Meckel's ventral movie Movie(s): 14 dpf Meckel's lateral movie
Description	By 338 hpf, Meckel’s cartilage (Mk) and the palatoquadrate (pq), dentary (d), premaxilla (pm), maxilla (mx), retroarticular bone (ra), anguloarticular (aa), and quadrate (q) are visible. The dentary has now covered the circumference of Meckel’s cartilage near the mandibular symphysis (sym), which is unlike that seen along the rest of the length of Meckel’s cartilage, where it only extends along one edge (i.e., laterally). Meckel’s cartilage now is displaced dorsally at the mandibular symphysis (data not shown). Note the extensive articulation between the dentary and maxilla, as well as the developiing articulation between the anguloarticular, quadrate, and retroarticular in the jaw joint.