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9 Cards in this Set

  • Front
  • Back
A gland includes
-glandular epithelium producing secretion
-duct system for drainage
-supportive connective tissue such as stroma
presence of absence of duct system
-endocrine:
if secretions released into blood vessels
-exocrine:
if secretion taken out through ducts
branching of duct system
-simple
only one duct per gland
-compound
duct divides,elaborate duct system
parenchyma and stroma
-parenchyma: secretory units and ducts
-stroma: supportive connective tissue (convey blood vessels); capsule (extensive strong holding connective tissue); septa and trabeculae
Ducts of compound glands
-intralobular ducts: intercalated ducts (ns) and striated ducts (s)
-interlobular ducts
-lobar ducts
-main duct
Shape of Secretory Unit
-tubular: straight and unbranched or coiled or branched
-acinar/alveolar: like orange slice with large or small duct
simple acinar
simple alveolar
branched acinar:large sebaceous glands
branched alveolar:respiratory tract
-tubuloacinar and tubuloalveolar
number of cells and location
unicellular: goblet
multicellular
intraepithelial
extraepithelial
Nature of secretory product
-serous
watery secretion, spherical nuclei, zymogen granules, protein containing
-mucous
thick viscous secretion, filled with mucinogen, nuclei flattened and displaced in basal part of cell: GIT, nasal cavity, does not stain, light cytoplasm
-seromucous or mixed
Mode of release of secretory product
-merocine(eccrine): simple exocytosis, do not lose cytoplasm
-apocrine: cell losing cytoplasm, maintain plasmalemma i.e. mammary
-holocrine: complete lose of cell b/c secretory material to "sticky" to be released i.e. ear wax
-cytocrine: injection into an adjacent cell via a process