Submandibular Gland Histology: From Microvilli To Secretory Canaliculi
Histology of Submandibular Gland
Answer:
- Submandibular gland is a mixed salivary gland
- It contains both serous and mucous acini
- Serous cells:
- They are darkly stained
- Have rounded nuclei placed towards the base
- They are arranged in the form of rounded acini or roughly pyramid
- Base is towards basement membrane and apex towards lumen
- Apex shows microvilli and pinocytotic vesicles
- Lumen has intercellular secretory canaliculi
- Cytoplasm contains
- Small and homogenous secretory granules Prominent Golgi apparatus
- Abundant rough endoplasmic reticulum Mitochondria
- Lysosomes
- Microfilaments
- Mucous cells:
- They are lightly stained
- Nucleus is flattened and present towards the basement membrane
- Cells are arranged in form of tubules
- Cells lining the tubules are columnar
- Secretory granules are large and ill defined
- Demilunes/Crescents:
- These are mucous cells covered by serous cells
- They are present at the ends of mucous tubules
- Serous cells:
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