Difference between revisions of "Hard Palate"
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==Structure and Function== | ==Structure and Function== | ||
| − | *Bony shelf of palatine processes of the incisive, maxillary and palatine bones. Failure of the palatine bones to fuse results in [[Oral Cavity - Cavity & Gingiva#Cleft Palate|cleft palate]]. | + | *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 [[Oral Cavity - Cavity & Gingiva#Cleft Palate|cleft palate]]. |
*6-8 fixed transverse ridges to direct food caudally | *6-8 fixed transverse ridges to direct food caudally | ||
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*Incisive papilla (small median swelling) behind incisive [[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology|teeth]] | *Incisive papilla (small median swelling) behind incisive [[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology|teeth]] | ||
| − | *Smaller papillae ducts branching to nasal cavity and vomeronasal organ | + | *Smaller papillae ducts branching to [[Nasal Cavity - Anatomy & Physiology|nasal cavity]] and vomeronasal organ |
==Histology== | ==Histology== | ||
Revision as of 19:33, 30 July 2008
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