Digestive system - pancreas, Biology

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PANCREAS

  • It is an elongated, leaf like, yellowish or orangish in colour. Lying partly behind stomach.
  • 16 cm long, 2.5 cm. wide & weight about 60 gms. It consists of head, body & tail.
  • Tail meets spleen.

1909_pancreas.png

  • It is Heterocrine gland, outer, part is exocrine (follicles) and inner part is endocrine
  • In exocrine part, pencreatic duct or duct of wirsbug present.
  • In endocrine part, islet of Langerhanse present. In islet of Langerhanse alpha cells and beta cells present.
  • Alpha cells secrete glucagone hormone to increase glucose level in blood.
  • Beta cells secrete insulin hormone to decrease glucose level in blood.
  • Due to defficiency of insulin diabetes malitus is caused.

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