Difference between revisions of "Mandibular Gland - Anatomy & Physiology"

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Revision as of 00:01, 3 July 2010

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ALIMENTARY SYSTEM
MAJOR SALIVARY GLANDS



Mandibular Salivary Gland

Mandibular Salivary Gland - Copyright Nottingham 2008
  • Merocrine secretion
  • Generally smaller than the parotid gland
  • It is a moderately large gland in carnivores
  • It is a large gland in herbivores
  • Compact
  • Located around angle of jaw
  • Mandibular duct runs ventral to mucous membrane of floor of oral cavity, close to frenulum of tongue
  • Duct opens at sublingual caruncle
  • Innervated by facial nerve (CN VII) via chordi tympanii of trigeminal (CN V)

Histology

  • Tubulo-acinar gland
  • Serous demilunes (stain darker)
  • Demilunes secrete into lumen by canaliculi between mucous cells


Species Differences

Carnivores

  • Mainly mucous secretion in dog and cat
  • Oval shape in canid

Herbivores

  • Larger and deeper