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branchial cleft
noun
- Zoology. one of a series of slitlike openings in the walls of the pharynx between the branchial arches of fishes and aquatic amphibians through which water passes from the pharynx to the exterior.
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Example Sentences
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They are termed the “branchial clefts,” and are seen in the embryos of all vertebrates.
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Branchial cysts are formed by the distension of an isolated and unobliterated portion of one of the branchial clefts.
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The ninth nerve forks over the first branchial cleft.
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Their branchial gut also opens directly outwards by a pair of branchial clefts.
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In the fishes the water that serves for breathing, and is taken in at the mouth, still always passes out by the branchial clefts at the sides of the gullet.
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