Difference between revisions of "Hard Palate"
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| − | {{ | + | {{toplink |
| − | == | + | |backcolour =BCED91 |
| + | |linkpage =Alimentary - Anatomy & Physiology | ||
| + | |linktext =Alimentary System | ||
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| + | }} | ||
| + | <br> | ||
| − | + | ==Introduction== | |
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| + | The hard palate (palatum durum) forms the rostral roof of the [[Oral Cavity Overview - Anatomy & Physiology|oral cavity]]. It merges caudally with the [[Soft Palate - Anatomy & Physiology|soft palate]] where a connective tissue aponeurosis replaces the bone. | ||
| + | [[Image:Hard and Soft Palate Anatomy.jpg|thumb|right|150px|Hard Palate - Copyright Nottingham 2008]] | ||
==Structure and Function== | ==Structure and Function== | ||
| − | + | *Bony shelf of palatine processes of the [[Skull and Facial Muscles - Anatomy & Physiology#Incisive Bone (os incisivium)|incisive]], [[Skull and Facial Muscles - Anatomy & Physiology#Maxilla|maxillary]] and [[Skull and Facial Muscles - Anatomy & Physiology#Paltine Bone (os palatinium)|palatine bones]]. Failure of the [[Skull and Facial Muscles - Anatomy & Physiology#Paltine Bone (os palatinium)|palatine bones]] to fuse results in [[Cleft Palate|cleft palate]]. | |
| − | + | ||
| + | *6-8 fixed transverse ridges to direct food caudally | ||
| + | |||
| + | *Flat | ||
| + | |||
| + | *Incisive papilla (small median swelling) behind incisive [[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology|teeth]] | ||
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| + | *Smaller papillae ducts branching to [[Nasal cavity - Anatomy & Physiology|nasal cavity]] and vomeronasal organ | ||
==Histology== | ==Histology== | ||
[[Image:Hard Palate Histology.jpg|thumb|right|150px|Hard Palate (Mouse) - Copyright RVC 2008]] | [[Image:Hard Palate Histology.jpg|thumb|right|150px|Hard Palate (Mouse) - Copyright RVC 2008]] | ||
| − | + | *Thick mucosa | |
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| + | *keratinised stratified squamous epithelium | ||
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==Species Differences== | ==Species Differences== | ||
===Herbivores=== | ===Herbivores=== | ||
| − | + | *More heavily keratinised | |
===Feline=== | ===Feline=== | ||
| − | + | *Short hard palate | |
==Links== | ==Links== | ||
| − | + | [[Cleft Palate|Pathology of Cleft Palate]] | |
| − | + | ||
| − | + | [[Category:Integumentary System]] | |
| − | [[Category: | ||
Revision as of 15:24, 22 August 2010
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Introduction
The hard palate (palatum durum) forms the rostral roof of the oral cavity. It merges caudally with the soft palate where a connective tissue aponeurosis replaces the bone.
Structure and Function
- Bony shelf of palatine processes of the incisive, maxillary and palatine bones. Failure of the palatine bones to fuse results in cleft palate.
- 6-8 fixed transverse ridges to direct food caudally
- Flat
- Incisive papilla (small median swelling) behind incisive teeth
- Smaller papillae ducts branching to nasal cavity and vomeronasal organ
Histology
- Thick mucosa
- keratinised stratified squamous epithelium
Species Differences
Herbivores
- More heavily keratinised
Feline
- Short hard palate