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Digestive Glands

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Estimated time: 3 minutes
  • Digestive Glands
  1. Salivary gland:
    a) Parotid gland
    b) Subligual gland
    c) Submaxillary/ Submandibular gland
  2. Liver
  3. Gall bladder
  4. Pancreas
Maharashtra State Board: Class 12

Key Points: Digestive Glands

  • Digestive glands associated with the alimentary canal are salivary glands, liver, gall bladder (storage) and pancreas.
  • Three pairs of salivary glands (parotid, submandibular, sublingual) pour saliva into the buccal cavity; serous cells secrete salivary amylase and mucous cells secrete mucus.
  • The liver is the largest gland (about 1.2–1.5 kg), located in the upper right abdomen, divided into right and left lobes made of hepatic lobules covered by Glisson’s capsule.
  • Hepatic cells produce bile (stored in gall bladder), store excess glucose as glycogen, synthesize vitamins A, D, K, B₂, and Kupffer cells remove toxins and worn‑out cells.
  • The pancreas is a heterocrine gland lying in the C‑shaped curve of the duodenum; its exocrine acini secrete alkaline pancreatic juice with enzymes.
  • The endocrine islets of Langerhans contain α‑cells (glucagon), β‑cells (insulin) and δ‑cells (somatostatin).
  • The common hepato‑pancreatic duct opens into the duodenum and is guarded by the sphincter of Oddi.

Shaalaa.com | Digestion and Absorption part 6 (Tongue: saliva, salivary glands)

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Digestion and Absorption part 6 (Tongue: saliva, salivary glands) [00:16:08]
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