Difference between revisions of "Avian Tongue - Anatomy & Physiology"
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− | + | <big><center>[[Avian Digestive Tract - Anatomy & Physiology|'''BACK TO THE AVIAN DIGESTIVE TRACT''']]</center></big> | |
− | == | + | |
+ | ==Introduction== | ||
The size and structure of the avian tongue varies between species. It is related to functional requirements. | The size and structure of the avian tongue varies between species. It is related to functional requirements. | ||
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==Structure and Function== | ==Structure and Function== | ||
− | + | *Narrow | |
+ | |||
+ | *Pointed | ||
+ | |||
+ | *Contains little intrinsic muscle | ||
+ | |||
+ | *The enteroglossal bone is present consisting of bone and cartilage with medullary spaces containing red marrow | ||
+ | |||
+ | *Supported by the lingual process of the hyoid bone | ||
+ | |||
+ | *Rudimentary lingual muscles | ||
+ | |||
+ | *Striated muslce fibres | ||
+ | |||
==Histology== | ==Histology== | ||
− | A few caudally directed | + | *A few caudally directed horny papillae are present |
+ | |||
+ | *Thick stratified squamous epithelium | ||
+ | |||
+ | *Keratinised | ||
+ | |||
+ | *Mucoid glands | ||
+ | |||
+ | *No [[Oral Cavity - Tongue - Anatomy & Physiology#Taste Buds|taste buds]] | ||
+ | |||
+ | *Lymphatic tissue spread throughout the corium | ||
+ | |||
==Species Differences== | ==Species Differences== | ||
− | + | *Parrots use their muscular tongue to lap water | |
+ | |||
+ | *Parrots use their muscular tongue to produce human sounds (see [[Syrinx - Anatomy & Physiology#Species Differences|here]]) | ||
==Links== | ==Links== | ||
− | + | [[The Avian Alimentary Tract - Anatomy & Physiology - Flashcards|Avian Alimentary Tract Flashcards]] | |
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− | + | [[Oral Cavity - Tongue - Anatomy & Physiology|Tongue - Anatomy & Physiology]] | |
− | [[ | ||
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Revision as of 12:01, 29 July 2008
Introduction
The size and structure of the avian tongue varies between species. It is related to functional requirements.
Structure and Function
- Narrow
- Pointed
- Contains little intrinsic muscle
- The enteroglossal bone is present consisting of bone and cartilage with medullary spaces containing red marrow
- Supported by the lingual process of the hyoid bone
- Rudimentary lingual muscles
- Striated muslce fibres
Histology
- A few caudally directed horny papillae are present
- Thick stratified squamous epithelium
- Keratinised
- Mucoid glands
- No taste buds
- Lymphatic tissue spread throughout the corium
Species Differences
- Parrots use their muscular tongue to lap water
- Parrots use their muscular tongue to produce human sounds (see here)