Changes

==Defence Mechanisms==

==Defence Mechanisms==

# Secretions :

 

#* Mucus (inhibits contact with mucosa, protects surface).

'''Secretions'''

#* Acid (parietal cells)

 

#* Digestive enzymes (pepsin from gastric chief cells)

Mucus (inhibits contact with mucosa, protects surface), acid (parietal cells) and digestive enzymes (pepsin from gastric chief cells) are all secreted by the ruminant stomach.

# Epithelium:

 

#* Provides a barrier

'''Epithelium'''

#** Stratified squamous epithelium; multilayered, high cell turnover  

 

# Movement:

Provides a barrier. It is a stratified squamous epithelium; multilayered, with a high cell turnover.

#* Continuous movement discourages persistence of insult at mucosa.

 

'''Movement'''

 

Continuous movement discourages persistence of insult at the mucosa.

'''Test Yourself with [[The Stomachs of the Ruminant - Anatomy & Physiology - Flashcards|Ruminant Stomachs Flashcards]]'''

'''Test Yourself with [[The Stomachs of the Ruminant - Anatomy & Physiology - Flashcards|Ruminant Stomachs Flashcards]]'''