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单词 Tuberculum impar
释义

Tuberculum impar

英语百科

Tuberculum impar

Pattern of the branchial arches. I-IV branchial arches, 1-4 branchial pouches (inside) and/or pharyngeal grooves (outside)a Tuberculum lateraleb Tuberculum imparc Foramen cecumd Ductus thyreoglossuse Sinus cervicalis

During the third week of embryogenesis there appears, immediately behind the ventral ends of the two halves of the mandibular arch, a rounded swelling named the tuberculum impar, which was described by His as undergoing enlargement to form the buccal part of the tongue.

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