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Areola
In anatomy, the areola (〔''OED'' 2nd edition, 1989.〕〔(Entry "areola" ) in ''(Merriam-Webster Online Dictionary )''.〕 or 〔) is a small circular area on the body with a different histology from the surrounding tissue. The term is most commonly used to denote the pigmented area on the human breast around the nipple (''areola mammae'') but it can also describe other small circular areas such as an inflamed region of skin.
The plural of areola is areolas or areolae, which is pronounced or . "Areola" is the diminutive of Latin ''area'', "open place".
==Human mammary areola==
Careful inspection of a mature human female nipple will reveal several small openings arranged radially around the tip of the nipple (lactiferous ducts) from which milk is released during lactation. Other small openings in the areola are sebaceous glands, known as Montgomery's glands (or glands of Montgomery).〔(PLOS ONE: The Secretion of Areolar (Montgomery's) Glands from Lactating Women Elicits Selective, Unconditional Responses in Neonates )〕 These can be quite obvious and raised above the surface of the areola, giving the appearance of "goose-flesh".
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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