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Avian Vent and Cloaca - Anatomy & Physiology (view source)
Revision as of 18:26, 10 December 2010
, 18:26, 10 December 2010no edit summary
The vent is a horizontal slit. It is the [[Avian Male Reproductive Tract - Anatomy & Physiology#Phallus|phallus]] of males on the internal surface of the ventral lip. During insemination, the vent is inverted.
The vent is a horizontal slit. It is the [[Avian Male Reproductive Tract - Anatomy & Physiology#Phallus|phallus]] of males on the internal surface of the ventral lip. During insemination, the vent is inverted.
==Histology==
*Columnar epithelium
*Stratified squamous epithelium at external opening of vent and in the caudal proctodeum
*Broad folds of mucous membrane
*Crypts present which branch near their base
*Lymphoid tissue present in the submucosa
*The fold of mucous membrane covering the entrance to the bursa is composed of columnar epithelium, muscle, connective tissue and goblet cells
*2 layers of tunica muscularis
**Inner circular
**Outer longitudinal
==Species Differences==
==Species Differences==
'''Test yourself with the [[The Avian Alimentary Tract - Anatomy & Physiology - Flashcards|Avian Alimentary Tract Flashcards]]'''
'''Test yourself with the [[The Avian Alimentary Tract - Anatomy & Physiology - Flashcards|Avian Alimentary Tract Flashcards]]'''
'''Click here for information on the [[Bursa of Fabricius - Anatomy & Physiology|Bursa of Fabricus]]'''
'''Click here for information on the [[Bursa of Fabricius - Anatomy & Physiology|Bursa of Fabricus]]'''