Normal Anatomy of the Breast Flashcards
what is important about the breast
secondary sexual feature of females
source of nutrition for neonates
possible site of malignant change
what are general features of the breast
highly specialised sweat glands
no special capsule or sheath
both Male and females have them
what is the location of the breast
2nd/3rd rib to 6th rib lies deep in pectoral fasciae 2/3 of breast over pec major 1/3 over seraatus anterior firmly attached the dermis by ligament of Cooper
what is the breast structure
nipple is an erectile structure
what is the nopple
prominence of the breast
contains dense
what is the areola
pigmented area around the nipple
how many lobules does each breast contain
15-20 lobules of granular tissue
what is the lactiferous duct
each lobule is drained by a lactiferous duct which opens independently not he nipple
what is the lactiferous sinys
each dilated portion of the lobule
what are the 4 quadrants of the breast
superomedial quadrant
superolateral quadrant
inferiolateral quadrant
inferiomedical quadrant
what is the structure of the male breast
formed by small ducts without lobules or alveoli
little supporting fibroadipose tissue
temporary enlargement in new born
what is the development of the breast
mammary crests or ridges appear during 4th week
extend from axillary region
what is gyaecomastia
postnatal development of rudimentary lactiferous ducts in males
what is polymastia
an extra breast
what is pluthelia
an extra nipple
what is athelia
absence of a nipple
what is the blood supply to the breast
branches of axillary artery, internal thoracic and intercostal arteries
what is the nerve supply of the breast
anterior and lateral cuteanous branches of 4-6th intercostal nerves
convey sensory
sympathetic fibres to blood vesssels
to smooth muscle
what is the lymphatic drainage of the breast
axillary lymph nodes
some to supraclavicular and inferior cervical nodes
medial to parasternal
what is the venous drainage of the breast
mostly to the axially vein
