Difference between revisions of "Crop - Anatomy and Physiology"

From WikiVet English
Jump to navigation Jump to search
(31 intermediate revisions by 9 users not shown)
Line 1: Line 1:
 +
<big><center>[[Avian Digestive Tract - Anatomy & Physiology|'''BACK TO THE AVIAN DIGESTIVE TRACT''']]</center></big>
  
−
Also known as: '''''Ingluvies'''''
+
==Introduction==
  
−
==Introduction==
+
The crop is a food storage device present in avian species. It is usually used when the muscular stomach (gizzard) is full. The crop also softens food.
  
−
The crop is a food storage device present in avian species. It is usually used when the muscular stomach ([[Gizzard - Anatomy & Physiology|gizzard]]) is full. The crop also softens food.
+
It is useful tool for avian veterinarians and owners of assessing when the bird last ate and it is especially important to ensure young chicks always have full crops. It is also a common site for impactions and surgical entry to remove foreign bodies.  
  
−
It is a useful tool for avian veterinarians and owners for assessing if a bird has recently eaten and it is especially important to ensure young chicks always have full crops. It is also a common site for impactions, rupture and surgical entry to remove foreign bodies.
 
  
 
==Structure and Function==
 
==Structure and Function==
−
[[Image:Crop of fowl.JPG|thumb|right|250px|Crop of fowl(Copyright RVC)]]
+
[[Image:crop anatomy.jpg|thumb|right|150px|Crop Anatomy(Copywright prof A.Goodship)]]
−
 
 
−
The crop is a muscular chamber. It is a fusiform enlargement of the ventral wall of the [[Oesophagus - Anatomy & Physiology|oesophagus]] at the thoracic inlet. It bulges and lies against the breast muscles.
 
  
−
==Innervation==
+
*Muscular chamber
  
−
The crop is innervated by the '''vagus nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN X]]).
+
*Fusiform enlargement of the [[Oesophagus - Anatomy & Physiology|oesophagus]]
  
−
==Species Differences==
+
*Thoracic inlet of ventral wall of [[Oesophagus - Anatomy & Physiology|oesophagus]]
  
−
The crop is absent or vestigial in '''waterfowl''' (ducks, swans and geese) and '''owls''' and tends to be much larger and muscular in '''seed eating birds''' and '''carnivorous birds of prey'''. '''Pigeons''' have epithelial cells in their crop sensitive to prolactin which slough when chicks (squabs) hatch, producing crop milk.
+
*Bulges and lies against the breast muscles
  
−
==Links==
 
−
 
−
'''Click here for more information on the [[Oesophagus - Anatomy & Physiology]]'''
 
  
 +
==Species Differences==
  
−
{{Template:Learning
+
*Crop small in ducks and geese
−
|flashcards = [[The Avian Alimentary Tract - Anatomy & Physiology - Flashcards|Avian Alimentary Tract]]
 
−
}}
 
  
−
==Webinars==
+
*Crop much larger and muscular in seed eating birds
−
<rss max="10" highlight="none">https://www.thewebinarvet.com/gastroenterology-and-nutrition/webinars/feed</rss>
 
  
−
[[Category:Avian Alimentary System - Anatomy & Physiology]]
+
*Crop milk produced by pigeons for their squabs
−
[[Category:A&P Done]]
 

Revision as of 16:18, 7 July 2008

BACK TO THE AVIAN DIGESTIVE TRACT

Introduction

The crop is a food storage device present in avian species. It is usually used when the muscular stomach (gizzard) is full. The crop also softens food.

It is useful tool for avian veterinarians and owners of assessing when the bird last ate and it is especially important to ensure young chicks always have full crops. It is also a common site for impactions and surgical entry to remove foreign bodies.


Structure and Function

Crop Anatomy(Copywright prof A.Goodship)
  • Muscular chamber
  • Bulges and lies against the breast muscles


Species Differences

  • Crop small in ducks and geese
  • Crop much larger and muscular in seed eating birds
  • Crop milk produced by pigeons for their squabs
Retrieved from "https://en.wikivet.net/index.php?title=Crop_-_Anatomy_and_Physiology&oldid=17689"