Mammary Gland

The mammary gland is an exocrine gland found in the breasts of humans and other mammals. Its primary function is to produce and secrete milk to nourish offspring. In humans, the mammary glands are arranged within the breasts and are most developed in females after puberty, under the influence of hormones such as estrogen, progesterone, and prolactin.

Anatomy

• Composed of lobules (milk-producing glands) and ducts (channels that carry milk to the nipple).
• Surrounded by fat and connective tissue, which determine the size and shape of the breast.

Physiology

• Milk production (lactation) is triggered by hormonal changes, especially after childbirth.
• Prolactin stimulates milk production, while oxytocin causes milk ejection.

Related Topics

• breasts
• lactation
• breastfeeding
• nipples
• areolas

Writing Tips

• Describe the fullness, sensitivity, and changes in the mammary glands during arousal, pregnancy, or breastfeeding.
• Use the mammary gland as a source of both nurturing and erotic imagery, depending on the context.