Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
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 |
