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Alveolar gland

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Alveolar gland
Gray1105
Section of pancreas of dog. X 250.
Latin '
Gray's subject #
System
MeSH [1]
Centroacinar cells

In contrast to tubular glands, in the second main variety of gland, the secretory portion is enlarged and the lumen variously increased in size. These are termed alveolar glands[1] (or saccular glands[2], or acinar glands[3], or acinous glands[4]).

Some sources draw a clear distinction between acinar and alveolar glands, based upon the shape of the lumen.[5]

A further complication in the case of the alveolar glands may occur in the form of still smaller saccular diverticuli growing out from the main sacculi. These are termed alveoli.

The term "tubulo-alveolar" (or "tubulo-acinar", or "compound tubulo-acinar", or "compound tubulo-alveolar"[6]) is used to describe that start out as branched tubular, and branch further to terminate in alveoli. This type of gland is found in the salivary glands[7], esophagus[8], and mammary glands.

The term "racemose gland"[9] is used to describe a "compound alveolar gland" or "compound acinar gland".[10]

Nervous system control of these glandsEdit

Additional imagesEdit

See alsoEdit

ReferencesEdit

  1. Dictionary at eMedicine Alveolar+gland
  2. Dictionary at eMedicine Saccular+gland
  3. acinar
  4. Dictionary at eMedicine Acinous+gland
  5. Blue Histology - Epithelia and Glands
  6. Template:KansasHistology
  7. Template:KansasHistology "Compound Tubulo- Alveolar"
  8. MedEd at Loyola histo/practical/epithelium/hp1-28.html
  9. Dictionary at eMedicine Racemose+gland
  10. SIU SOM Histology GI




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