英语词汇“pharyngeal cleft”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-新都网

单词	pharyngeal cleft
释义	pharyngeal cleft pharyngeal cleft or pharyngeal grooven. See gill slit. pharyngeal cleft pharyngeal cleft [fə′rin·jē·əl ′kleft] (embryology) One of the paired open clefts on the sides of the embryonic pharynx between successive visceral arches in vertebrates. pharyngeal cleft pharyngeal cleft or pharyngeal groove n. See gill slit. pharyngeal cleft A primitive structure seen in the 5-week embryo, only part of which (the dorsal aspect of the 1st pharyngeal cleft) gives rise to the external auditory canal; the 2nd, 3rd and 4th pharyngeal clefts undergo atrophy and are covered by the 2nd pharyngeal arch. pha·ryn·ge·al groove (făr-in'jē-ăl grūv) The ectodermal groove between two pharyngeal arches in the human embryo. Synonym(s): branchial cleft, pharyngeal cleft. ThesaurusSeebranchial arch
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pharyngeal cleft