Exam 2: Breast Flashcards
Breast consists of
- Mammary glands
- Fat
- Fibrous tissue
Breast located between what ribs
2nd and 6th
Breast located between what two structures
Sternum and midaxillary line
Midaxillary line
Vertical line that divides armpit into A and P halves
Nipple location
4th intercostal space
Areola
Ring of pigmented skin that surrounds the nipple
Axillary process
Portion of breast that extends into the armpit
Frequent site for cancer
Axillary process
Suspensory ligaments
Strong fibrous septa that support breast
Suspensory ligaments run through the breast from _____ to _____
Skin to deep layer of superficial fascia
Mammary gland is a modified
Sweat gland
Mammary gland location
Superficial fascia
Each mammary gland has how many lobes
15-20
Each lobe opens to tip of nipple through
Lactiferous duct
Lactiferous sinus
Expansion of lactiferous duct
Lactiferous sinus function
Reservoir for milk during lactation
Blood supply of breast
- Internal thoracic artery
- Thoracoacromial artery
- Lateral thoracic artery
- Intercostal arteries
Lymphatic drainage of the breast
- Axillary nodes
- Parasternal nodes
- Nodes of opposite breast
- Nodes of anterior abdominal wall
75% of lymph from breast goes to
Axillary nodes
MC cancer in women
Breast cancer
Breast cancer usually spreads to where first
Axilla (bc of lymphatic drainage)
Clinical signs of breast cancer
- Dimpling
- Inverted nipple
- Leathery thickening of skin
Breast cancer is ONE cause of
Midthoracic back pain in a female
