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Zebrafish Anatomical Dictionary

Structure description: Parhypural

by Paula Mabee and Nathan C. Bird

Name: Parhypural

Abbreviation: phy

Synonyms: synonyms

Figures:


hypurals (larval, 4mm)

hypurals (larval, 5.8mm)

hypurals (adult)

Description: The cartilaginous precursor of the parhypural appears ventral to the posterior tip of the notochord at early larval stages (~3.9 mm notochord length, ~5 d). The parhypural is the last hemal spine through which the ventral aorta passes. The parhypural will support fin rays of the caudal fin. The parhypurapophyses (also "hypurapophyses") are the paired bony lateral extensions off the hemal arch of the parhypural. They serve as origin for the anterolateral bundle of the hypochordal longitudinal muscle (Lundberg and Baskin 1969).

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Parents (forms from): sclerotome

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