Final answer:
The elevated sebaceous glands located in the areolas are called Montgomery glands. They secrete an oily substance to protect and lubricate the nipple during breastfeeding.
Step-by-step explanation:
During lactation, the breasts supply milk to an infant, and this process involves the use of the areola and nipple. The areola is a pigmented, circular area that surrounds the nipple. Within the areola, there are specialized sebaceous glands known as Montgomery glands. These glands are responsible for secreting an oily substance that lubricates the nipple area to protect it during breastfeeding. This secretion is important for both the comfort and health of breastfeeding mothers, as it prevents chapping and cracking of the nipple. Montgomery glands are an example of how the body adapts to enhance the mother-infant bonding process and facilitate successful feeding.