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Avian Vent and Cloaca - Anatomy & Physiology (view source)
Revision as of 11:52, 29 July 2008
, 11:52, 29 July 2008no edit summary
**Short
**Short
**Ends at the vent
**Ends at the vent
**Opening in the dorsal wall leads to the cloacal bursa
**Opening in the dorsal wall leads to the cloacal bursa of Fabricus
==The Vent==
==The Vent==
*During insemination the vent is inverted
*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==