gill arch


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Related to gill arch: Gill raker

gill arch

 (gĭl)
n.
1. One of several bony or cartilaginous arches located on either side of the pharynx and supporting the gills in fish and amphibians.
2. Embryology One of several corresponding arches in the embryo of a bird, reptile, or mammal that develop into structures of the ear and neck. In both senses also called branchial arch, pharyngeal arch.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.gill arch - one of the bony or cartilaginous arches on each side of the pharynx that support the gills of fishes and aquatic amphibiansgill arch - one of the bony or cartilaginous arches on each side of the pharynx that support the gills of fishes and aquatic amphibians
anatomical structure, bodily structure, body structure, complex body part, structure - a particular complex anatomical part of a living thing; "he has good bone structure"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Zeuxapta seriolae showed a preference to be attached on the second left gill arch, followed by the first gill arch (Fig.
In crimson snapper larvae, the ceratobranchial, basibranchial and hypobranchial cartilages were attached to the gill arch. The first four gill arches formed at 2.83 +- 0.01 mm (standard length +- SD, 3 DPH, Fig.
They have reported some specificity for particular areas of attachment of these parasites by arbitrarily dividing each gill arch into several regions.
He discovered that the gill rakers of sardine specimens (Clupeiformes: Clupeidae: Sardina) began to form on the gill arch when the larva was about 20 mm long.
The development of the jaw is carried out by multiple processes which include the formation of its skeletal elements, which are derived from cells of the CNC of the first gill arch. In this formation, the condylar development plays an important role, in a form that any alteration level specifically contributes to causing mandibular condyle asymmetries.
The count of scales in longitudinal series is made from above the dorsal end of the gill opening to the base of the caudal fin; scales in transverse series are counted from the origin of the anal fin anterodor-sally to the base of the first dorsal fin; gill rakers are counted on the first gill arch, those on the upper limb listed first; rudiments are included in the counts.
evermanni: 1st gill arch 2-3+9-11, 2nd gill arch 1+6-9; A.
maximus, LACM 35876-1, wet-preserved gill arch with gill rakers, adult male, 6.0-6.7 m total length (TL), collected off Morro Bay, San Luis Obispo, California, 30 June 1976.
The research also showed for the first time that the gill arch skeleton of embryonic skates (a living relative of sharks that has gill rays) responds to treatment with the vitamin A derivative retinoic acid in the same way a limb or fin skeleton does, by making a mirror image duplicate of the structure as the embryo develops.