Term
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Definition
Specialized accessory glands, resemble sweat glands.
Consist of 15-20 compound(branched) tubular glands. one per lobe |
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Term
| Puberty Changes in Mammary |
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Definition
glands enlarge rapidly due to estrogen and prolactin.
Enlargement due to C.T.(adipose tissue) some duct tissue development |
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Term
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Definition
| Each lobe is divided into lobules which contain alveolar ducts |
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Term
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Definition
covered by small, saccular evaginations, called alveoli
lined w ith cuboidal or low columnar secretory cells.
myoepithelial cells surrond secretory portion |
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Term
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Definition
| Surrounds lobes. contains many fat cells |
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Term
| Interlobular vs Intralobular |
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Definition
Dense Ct with some fat cells
Intralobular - loose CT with few fat cells |
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Term
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Definition
| Alveolar ducts -> intralobular -> interlobular -> lactiferous duct |
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Term
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Definition
epidermis has unusually long papillae which brings capillaries close to surface. (pink color)
Smooth muscle: Longitudinal - Laactiferous ducts
Circumferentially within nipple and around base. Makes nipple erect |
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Term
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Definition
Glands of montgomery - sebacious glands.
Secretes lubricating and protective tissue. Changes pH and antibacterial
Sweat and sebacious glands surrond margin |
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Term
| Changes during first half of pregnancy |
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Definition
rapid growth & branching from terminal portion of duct system - new alveoli form
interlobular adipose tissue regresses with the growth of the glandular tissue
intralobular c.t. decreases in amount and becomes infiltrated with lymphocytes
remaining c.t. contains extensive capillary networks |
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Term
| Changes during second half of pregnancy |
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Definition
Alveoli enlarge - Colostrum secretion
expulsion of placenta - Surge in prolactin - increases milk production
Hypothalmus releases oxytocin, contracts myoepithelium. |
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Term
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Definition
Protein: elaborated in RER, passes to Golgi for packaging and concentrating
transported to surface in vesicles and released
Lipids: arise as lipid droplets free in the cytoplasm
increase in size, pass to the apical surface
project into the lumen - covered with plasmalemma and released |
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