Breast Lecture 1-2 Flashcards
What are the different factors that contribute to breast size and shape?
Genetics
Race
Dietary factors
Which muscles does the breast lie anterior to?
Pectoralis major
Serratus anterior
Where does the breast extend to and from?
3rd-6th rib
Sternal edge to midaxillary line
What attaches the breast to the dermis and helps to support of lobules of the gland?
Suspensory ligament of cooper
What is the pigmented area around the nipple called?
Areola
How many lobules of glandular tissue/parenchyma does each breast contain?
15-20
What is each breast lobule drained by?
Lactiferous duct
What tissue makes up the nipple?
Dense connective tissues
->elastic fibres and smooth muscles
Where is the position anatomically of the nipple?
Variable but tends to be 4th intercostal space
What is the areola?
Skin covering the nipple
Which types of gland does the areola have?
Numerous sweat and sebaceous glands
What happens to the size of the areola during pregnancy?
Increases in size
What is the function of the oily substance secreted by the sebaceous gland of the areola?
Provides protective lubricant for the nipple and the areola
Name the four quadrants the breast is divided into which helps with the description of any pathology.
Superolateral
Superomedial
Inferolateral
Inferomedial
Gynaecomastia?
Enlargement of breast tissue