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nasal pits


Definition: the paired depressions formed when the nasal placodes come to lie below the general external contour of the developing face as a result of the rapid growth of the adjacent nasal elevations; the pits are the primordia of the rostral portions of the nasal chambers.

Synonym(s): olfactory pits

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.