Difference between revisions of "Mandibular Gland - Anatomy & Physiology"
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The '''mandibular duct''' runs ventral to the mucous membrane of the floor of the [[Oral Cavity Overview - Anatomy & Physiology|oral cavity]], close to the '''frenulum''' of the [[Tongue - Anatomy & Physiology|tongue]]. The duct opens at the '''sublingual caruncle'''. | The '''mandibular duct''' runs ventral to the mucous membrane of the floor of the [[Oral Cavity Overview - Anatomy & Physiology|oral cavity]], close to the '''frenulum''' of the [[Tongue - Anatomy & Physiology|tongue]]. The duct opens at the '''sublingual caruncle'''. | ||
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| + | ==Histology== | ||
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| + | *Tubulo-acinar gland | ||
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| + | *[[Mucous Salivary Gland - Anatomy & Physiology|Mucous]] cells (stain lighter) | ||
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| + | *[[Serous Salivary Gland - Anatomy & Physiology|Serous]] demilunes (stain darker) | ||
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| + | *Demilunes secrete into lumen by canaliculi between mucous cells | ||
==Innervation== | ==Innervation== | ||
Revision as of 17:10, 10 December 2010
Overview
The mandibular gland produces a merocrine secretion. It is generally smaller than the parotid gland and is a moderately large gland in carnivores and herbivores. It is compact and located around the angle of the jaw.
The mandibular duct runs ventral to the mucous membrane of the floor of the oral cavity, close to the frenulum of the tongue. The duct opens at the sublingual caruncle.
Histology
- Tubulo-acinar gland
- Mucous cells (stain lighter)
- Serous demilunes (stain darker)
- Demilunes secrete into lumen by canaliculi between mucous cells
Innervation
The mandibular gland is innervated by the facial nerve (CN VII) via the chordi tympanii of the trigeminal nerve (CN V).
Species Differences
Carnivores
The mandibular gland produces mainly mucous secretions in the dog and cat. It is an oval shape in the canid.
Herbivores
The mandibular gland in herbivores is larger and deeper.
Links
Test yourself with the Salivary Gland Flashcards
Click here for mandibular gland histology