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mammary crests


Definition: bandlike ectodermal thickenings in embryos extending on either side from the bases of the limb buds; in human embryos, the crests are most obvious over the thoracic region where they form the breast primordia; the remainder of the crests normally disappear.

Synonym(s): mammary fold, mammary ridge, milk line, milk ridge

Further information

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