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HA Module 2
Breast and Regional Lymphatics
| Term | Definition |
|---|---|
| areola | pigmented area approximately 2.5 to 10 cm in diameter that surrounds the nipple |
| labules (of the breast) | grapelike bunches that are clustered around several lactiferous ducts; each lope is composed of 20 to 40 lobules that contain milk-producing glands called alveoli or acini |
| mastectomy | excision or surgical removal of the breast |
| breasts | pair of mammary glands located on the anterior chest wall extending vertically from the second to the sixth rib and laterally from the sternal border to the axillae |
| colostrum | a thin milky secretion expressed by the breast during pregnancy and for a few days after parturition; is rich in antibodies and colostrum corpuscles |
| axillary nodes | lymphoid organs composed of four groups: central axillary, pectoral (anterior), subscapular (posterior) and lateral |
| cooper's ligaments | connective tissue fibers that extend vertically from the deep fascia through the breast to the inner layer of the skin that provide support for the breast tissue |
| granulomatous reaction (in the breast) | development of small, nodular inflammatory lesions and capsular membranes over the breasts |
| lactiferous ducts | openings at the nipple through which milk and colostrum are excreted |
| nipple | a round, hairless pigmented protrusion of erectile tissue approximately 0.5 to 1.5 cm in diameter located in the center of the breast |
| montgomery's tubercles | sebaceous glands present on the surface of the areola |
| peau d'Orange | thickening or edema of the breast tissue or nipple; may present as enlarge skin pores that give the appearance of an orange rind |
| paget's disease | malignant neoplasm, which is usually unilateral in its involvement and presents as persistent eczematous dermatitis of the areola and nipple |
| milk line | ectodermal galactic band that develops from the axillae to the groin during the fifth week of fetal development |
| augmentation mammoplasty | surgical breast enhancement |
| ectodermal galactic band | see milk line |
| tail of spence | upper outer quadrant of the breast that extends into the axilla |
| retromammary adipose tissue | tissue that constitutes the bulk of the breast |
| gynecomastia | enlargement of male breast tissue; may occur normally in adolescent and elderly males |
| supernumerary nipples | extra nipples or breast tissue along the milk line that results from incomplete atrophy of the ectodermal galactic band |
| alveoli (of the breast) | milk-producing glands located in the lobules; also called acini |
| lymphatic drainage | yellow alkaline drainage originating in the lymph vessels that is composed primarily of lymphocytes |
| lobes (of the breast) | glandular breast tissue arranged radially in the form of 12 to 20 spokes |
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