Nipple histology

A nipple or mammary papilla or teat is a small projection of skin containing the outlets for 15-20 lactiferous ducts arranged cylindrically around the tip. The skin of the nipple is rich in a supply of special nerves that are sensitive to certain stimuli. The physiological purpose of nipples is to deliver milk to the infant, produced in the female mammary glands during lactation. (from wikipedia)

Image from Yale Medicine Histology

“This is a low magnification cross section of the nipple.  The lactiferous sinuses, which lie between the lactiferous ducts and the outside of the body.  Also visible are several sebaceous glands in the areola, these glands are not associated with hair follicles.”

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