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pharyngeal pouch |
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pharyngeal pouch [fə′rin·jē·əl ′pau̇ch] (embryology) One of the five paired sacculations in the lateral aspect of the pharynx in vertebrate embryos. Also known as visceral pouch. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Older theories hold that they are congenital abnormalities caused by an incomplete obliteration of pharyngeal pouches. 2) The thymus is derived from the third and fourth pharyngeal pouches. When they do occur, they typically arise from the parotid gland and the first and second pharyngeal pouches. |
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