mammary glands Flashcards
at what level is the mammary glands and what level is the nip
located ribs 2-6
nipple at 5th intercostal
what lig devides the breast into 15-20 lobes and keeps it suspended
suspensory ligs ( coopers lig)- ext of superficail pectoral fascia
what is the retromamary space between
bw pectoral fascia and deep layer of the breast
what happens when there is cancer within the retromamary space
breast will move up when pec minor contracted and will shorten suspensory lig so dimpiles will form on surface
blood supply to mamary gland and which is largest in females
Superior mammary branch
Lat mammary branch (largest)
medial mammary branch (of intercostal)
Posterior mammary a
venous drainage of mammary gland is to
Axiallary and internal thoracic v
where does lymph from lat quadrent and axillary spence lig drain and percentage
axillary lymph nodes (75%)
where does lymph from medial quadrenat drain
to parasternal lymph nodes
where does lymph from inf quadrent drain
abdominal lymph nodes
The right lymphatic duct is responsible for what areas of the body (and what is the other duct for the rest called)
right- right upper limb, right head/neck, right thoracic wall
rest- Throacic duct
Lat cutaneous nerve 2 and 3 are components of what nerve and what does that nerve supply
Intercostobrachial T2/3 (skin over axillary tail)
what supplies skin over axillary tail, floor of axilla, prox medial arm
Intercostobrachial (lat cutaneous br t2/3)
where does the intercostobrachial nerve emerge from
2nd intercostal space
clinical signs and symptoms of adenocarcinoma (breast cancer)
- Axillary + supraclaviculr lymph nodes
- upward mvmt of breast
- Inverted nipple
- Dimpling
