page_title: Mammary ridge
hierarchical_section_title: Mammary ridge
caption_attribution_description: 中文（简体）‎: 人类天生的乳线English: Natural milk lines
context_page_description: The mammary ridge or mammary crest is a primordium specific for the development of the mammary gland.
context_section_description: The mammary ridge or mammary crest is a primordium specific for the development of the mammary gland.
caption: Natural milk lines in the human body
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