breast Flashcards
breasts cover which ribs ?
2-6
breasts sit on top of deep fascia that covers?
pec major and serratus anterior
blood supply of breast?
branches of internal thoracic and lateral thoracic
the medial mammary branches are branches from?
internal thoracic
lateral thoracic comes off?
subclavian
where will majority of lymph drain from breast?
ipsilateral axillary node then to supraclavicular nodes, then to thoracic duct
about a quarter of lymph does not drain this way and drains to?
♣ Parasternal nodes.
♣ Abdominal nodes.
♣ Nodes of the contralateral breast.
o Are the functional unit of breast tissue and are the site of milk production?
lobules
Each lobule is composed of ?
o a secretory acini, which produces milk in response to prolactin.
The acini connect to the nipples via
a series of ducts
The largest of these ducts is the
lactiferous duct
which duct connects to the nipple surface?
the lactiferous duct
Just below the nipple there is an expansion of the lactiferous ducts called the
lactiferous sinus
a site of storage for milk.?
lactiferous sinus
what type of cells is the nipple composed of ?
highly pigmented keratinised epithelium
its the only place in the body where the sebaceous glands open up directly on to the skin
y
young women have a higher proportion of what kind of tissue compared to older women?
they have more glandular tissue and less fat tissue - they have denser breasts
which hormones in pregnancy cause proliferation of glandular tissue?
oestrogen and progesterone
what happenst to the breasts as you get older?
progressive loss of glandular tissue and replacement of this with glandular tissue, leading to a loss of density
standard protocol offered to all women who come into the breast clinic?
triple assessment
