CHAPTER 20 - breast Flashcards
an accessory reproductive organ with two functions: to produce and store milk that provides nourishment
for newborns and to aid in sexual stimulation.
female breasts
upper outer quadrant, which extends into the axillary area, is referred to as the
tail of Spence.
Most breast tumors occur in this quadrant.
upper outer quadrant,
the nipples Contains the tiny openings ____ through which milk passes.
lactiferous ducts
the areola contains elevated sebaceous glands called
(Montgomery glands)
Secrete a protective lipid
substance during lactation.
Montgomery glands
Cause the nipple to become
\ more erectile during stimulation.
Smooth muscle fibers in the areola
During embryonic development, a _____ extends from each axilla to the groin
area.
milk line
or ridge
develops
from the axilla to the groin during the 5th week of fetal development.
ectodermal galactic band
other term for other breast tissue
supernumerary nipples
will result to the
development of extra nipples.
Failure to atrophy
The functional capability of the breast is related to what:
the glandular tissue
Constitutes the functional part of the breast,
allowing for milk production.
GLANDULAR TISSUE
the GLANDULAR TISSUE is arranged in to how many lobes
15 to 20 lobes
slight enlargement in
each duct before it reaches the nipple.
Lactiferous sinus
provides support for the glandular tissue
FIBROUS TISSUE
fibrous tissues support uses bands called the
Cooper’s
ligaments
provides most of the substance to the
breast, determining the size and shape of the
breasts.
subcutaneous and retromammary fat
Lymphatics from most of the breast drain to
the
axilla.
nodes drain the anterior chest
wall and breasts.
ANTERIOR NODES (PECTORAL)
The posterior chest wall and part of the arms
are drained by
POSTERIOR NODES (SUBSCAPULAR)
these nodes drain most of the arms.
LATERAL NODES (brachial)