Classification of Exocrine Glands

cmumille2jt's version from 2010-09-25 00:14

Section 1

Question Answer
What are the classifications that are based on the number of cells?Unicellular, multicellular
What are Unicellular exocrine glands?Composed of a single cell
What is an example of Unicellular?Goblet cells
What are Mulitcellular glandscomposed of many cells
Mulitcellular is further classified according to what?according to duct branching and the shape of the secretory unit
What are the classifications of Multicellular in duct branching?Simple (duct does not branch) and compound (duct branches)
What are the classifications of Multicellular when it comes to shape fo the secretory unit?acinar, alveolar (sac or flask-like) or the tubular (straight, brahced or coiled)
What are some examples of Tubular?imple tubular, simple coiled tubular, simple branched tubular, simple branched acinar, compound tubular, compound acinar, compound tubuloacinar

Section 2

Question Answer
What are the classification of exocrine glands that is based on the nature of secretion?Mucus, serous and mixed
What is Mucus?is a viscous material that protects or lubricates cell surfaces
What is Serous?is watery secretion that is often rich in enzymes
What is mixed?secretion that contains both mucous and serous

Section 3

Question Answer
What are the classifications of exocrine glands that are based on how the secretion leaves the cell?merocrine, apocrine, holocrine
What is Merocrine cells?Cells release only secretory granules by exocytosis, with no loss of cytoplasm
What is Apocrine cells?celss release secretory product with some apical cytoplasm
What is holocrine cells?The release secretory product with all cytoplasmic contents (holocrine cells die)

Section 4

Question Answer
What are Myoepithelial cells?they are epithelial in organization and are muscular in function (both actin and myosin)
Where do the Myoepithelial cells lie?between the epithelial cells and the basal lamina

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