Breast Flashcards
are paired mammary glands that lie over the muscles of the anterior chest wall, anterior to the pectoralis major and serratus anterior muscles.
breasts
which is located in the center of the breast, contains the tiny openings of the lactiferous ducts through which milk passes.
nipple
surrounds the nipple (generally 1- to 2-cm radius) and contains elevated sebaceous glands (Montgomery glands) that secrete a protective lipid substance during lactation.
areola
or other breast tissue may appear along this “milk line”
supernumerary nipples
Female breasts consist of three types of tissue:
glandular, fibrous, and fatty (adipose).
constitutes the functional part of the breast, allowing for milk production.
Glandular tissue
Glandular tissue is arranged in______ that radiate in a circular fashion from the nipple.
15 to 20 lobes
from the alveoli converge into a single lactiferous duct that leaves each lobe and conveys milk to the nipple.
Mammary ducts
The slight enlargement in each duct before it reaches the nipple is called the .
lactiferous sinus
The milk can be stored in the lactiferous sinus (or _____) until stimulated to be released from the nipple.
ampullae
The fibrous tissue provides support for the glandular tissue largely by way of bands called
Cooper ligaments (suspensory ligaments).
is the third component of the breast. The glandular tissue is embedded in the ______. This subcutaneous and retromammary fat provides most of the substance to the breast, determining the size and shape of the breasts.
Fatty tissue
Both males and females have superficial veins forming a network over the entire chest, known as the .
mammary plexus
___ (Haldol, an antipsychotic drug, can cause ___ (persistent milk secretion whether or not the woman is breastfeeding) and lactation.
Haloperidol, galactorrhea
This is also a side effect of _____ (Depo-Provera) injections.
medroxyprogesterone