Changes

Jump to navigation Jump to search
518 bytes added ,  09:50, 7 May 2016
Line 1: Line 1: −
<big><center>[[Alimentary - Anatomy & Physiology|'''BACK TO ALIMENTARY - ANATOMY & PHYSIOLOGY''']]</center></big>
+
{{OpenPagesTop}}
 +
==Overview==
    +
The cheeks (buccae) are important in the process of [[Mastication|mastication]] (and also drinking in herbivores). Minor [[Salivary Glands - Anatomy & Physiology|Salivary glands]] are located within the buccal musculature. The cheeks also create extensive food storage pouches in some species.
   −
==Introduction==
+
==Structure and Function==
   −
The cheeks (buccae) are important in the process of [[Mastication|mastication]] (and also drinking in herbivores). [[Oral Cavity - Salivary Glands - Anatomy & Physiology|Salivary glands]] are located within the buccal musculature.  
+
The cheeks are composed of many of the muscles of [[mastication]].  
   −
The cheeks also create extensive food storage pouches in some species.
+
The main muscles of [[mastication]] are:
 +
*The '''masseter''' muscle
 +
*The '''lateral''' and '''medial''' pterygoids
 +
*The '''digastricus''' muscle
 +
*The '''temporalis''' muscle
 +
 
 +
Other muscles that aid mastication include :
 +
*the buccinator muscle
 +
*the zygomaticus muscle
 +
*the platysma muscle
   −
==Structure and Function==
     −
*The cheeks are composed of muscles for [[mastication]]:
+
The '''[[Parotid Gland - Anatomy & Physiology|Parotid duct]]''' opens in a small papillae above the upper fourth premolar (canid).
**The buccinator muscle
  −
**The masseter muscle
  −
**Lateral and medial pterygoids
  −
**Digastricus muscle
  −
**Zygomaticus muscle
  −
**Temporalis muscle
  −
**Platysma muscle
     −
*[[Parotid|Parotid duct]] ends in a small papillae opposite the upper fourth premolar (canid)
+
==Innervation==
    +
The cheeks are innervated by the trigeminal nerve ([[Cranial Nerves - Anatomy & Physiology|CN V]]) and the facial nerve ([[Cranial Nerves - Anatomy & Physiology|CN VII]]).
    
==Histology==
 
==Histology==
Line 26: Line 30:  
*Non keratinised stratified epithelium
 
*Non keratinised stratified epithelium
   −
*Some keratinisation in ruminants (see species difference section)
+
*Some keratinisation in ruminants (see [[Cheeks#Species Differences|species difference section]] )
   −
*[[Buccal|Buccal]] glands
+
*[[Buccal Gland - Anatomy & Physiology|Buccal]] glands
   −
*[[Zygomatic|Zygomatic]] salivary gland
+
*[[Zygomatic Gland - Anatomy & Physiology|Zygomatic]] salivary gland
 
  −
 
  −
==Innervation==
  −
 
  −
*Trigeminal nerve ([[Nervous System - CNS - Anatomy & Physiology#Innervation - Cranial Nerves|CN V]]
  −
 
  −
*Facial nerve ([[Nervous System - CNS - Anatomy & Physiology#Innervation - Cranial Nerves|CN VII]])
      
==Species Differences==
 
==Species Differences==
    
===Rodents===
 
===Rodents===
*'Cheek pouches' are diverticula found in rodents (and monkeys) allowing food storage. The pouches can be extensive extending into the thorax with their own musculature.
+
'Cheek pouches' are '''diverticula''' found in rodents (and monkeys) allowing food storage. The pouches can be extensive extending into the thorax with their own musculature.
    
===Ruminants===
 
===Ruminants===
*Papillae are present on the medial surface of the cheeks. These large, pointed and densely spaced projections of keratin provide protection to the underlying epithelium due to the rough diet.
+
'''Papillae''' are present on the medial surface of the cheeks. These large, pointed and densely spaced projections of '''keratin''' provide protection to the underlying epithelium due to the rough diet.
 +
 
 +
{{Learning
 +
|flashcards = [[Cheeks Anatomy & Physiology Flashcards]]<br>[[Facial_Muscles_-_Musculoskeletal_-_Flashcards|Facial Muscles Flashcards]]
 +
|Vetstream = [https://www.vetstream.com/canis/Content/Disease/dis02133.asp Masticatory Myopthies]
 +
}}
 +
 
 +
{{review}}
 +
{{OpenPages}}
 +
[[Category:Oral Cavity - Anatomy & Physiology]]
 +
[[Category:Musculoskeletal System - Anatomy & Physiology]]
147

edits

Navigation menu