Breast Flashcards
External Female Breast: extends transversely from
the lateral border of the sternum to midaxillary line and vertically from 2nd to 6th ribs
Polymastia
accessory breast
Polythelia
accessory nipples
Amastia:
no breast
Gynecomastia:
breast hypertrophy in males
Lactiferous ducts gives lobules of the _____ gland; each gland is drained by _____ duct, which dilates into a sinus and narrows again into a duct
Lactiferous ducts gives lobules of the mammary gland; each gland is drained by lactiferous duct, which dilates into a sinus and narrows again into a duct
Nerves of the breast: transmitted from the anterior and lateral branches of the 4-6th ________ nerve
Nerves of the breast: transmitted from the anterior and lateral branches of the 4-6th intercostal nerve
Nipple its at the T_ dermatome
Nipple sits at the T4 dermatome
What fiber nerve types are in the nerves of the breast?
- afferent sensory
- postganglionic sympathetic
Lymph from the nipple, areola, and lobules travels through the?
subareolar plexus
superior + inferior quadrants of the breasts accounts for 75% of lymph drainage to the ____ lymph nodes
superior + inferior quadrants of the breasts accounts for 75% of lymph drainage to the the axillary lymph nodes
Medial quadrants drain into the ____ lymph nodes
Medial quadrants drain into the parasternal lymph nodes
_____ lymph nodes can send lymph to the contralateral breast
Parasternal lymph nodes can send lymph to the contralateral breast
Inferior quadrants of the breast can send lymph to the ____ nodes
Inferior quadrants of the breast can send lymph to the sub-diaphragmatic nodes
Presentation of breast cancer: glandular tissue is invaded
Large dimples, shortening of suspensory ligaments
Presentation of breast cancer: lactiferous ducts invaded
Retraction and deviation of nipple, shortened ducts, common in subareolar breast cancer
Presentation of breast cancer: lymphatic drainage invasion
Lymphedema (excess fluid in subcutaneous tissue)
Peau d’orange sign (orange peel appearance) Prominent/puff skin between dimpled pores
Breast cancer presentation: Retromammary space, pectoral fascia, interpectoral lymph nodes invaded
Breast elevates when muscle contracts; sign of advanced breast cancer
Internal breast
Lactiferous ducts gives lobules of the mammary gland; each gland is drained by lactiferous duct, which dilates into a sinus and narrows again into a duct
Radical Mastectomy: what is removed?
Breast tissue + lymph nodes + muscles
modified radical mastectomy:
Breast tissue + lymph nodes removed
Lumpectomy/total mastectomy
ONLY Breast tissue removed; LUMPECTOMY
