Each breast has 15 to 20 sections, called lobes. Each lobe has many smaller
lobules, which end in dozens of tiny bulbs that can produce milk. The
lobes, lobules, and bulbs are all linked by thin tubes called ducts. These
ducts lead to the nipple in the center of a dark area of skin called the
areola.
Fat fills the spaces between lobules and ducts.
There are no muscles in the breast, but muscles lie under each breast and
cover the ribs.
Each breast also contains blood vessels and vessels that carry lymph. The
lymph vessels lead to small bean-shaped organs called lymph nodes, clusters
of which are found under the arm, above the collarbone, and in the chest,
as well as in many other parts of the body.
FAQs
