Tracto Digestivo de la Ave - Anatomía & Fisiología - Flashcard

Pregunta	Respuesta		Art’culo
True or False: The avian tongue has a bone in it?	True		Enlace al Art’culo
In which direction are the horny papillae of the tongue facing?	Caudally		Enlace al Art’culo
Are taste buds present on the avian tongue?	Yes		Enlace al Art’culo
Which substances are present in avian saliva?	Amylase		Enlace al Art’culo
What is the function of the crop?	Store of food		Enlace al Art’culo
Which nerve innervates the crop?	Vagus nerve (CN X)		Enlace al Art’culo
Pigeons slough their epithelial cells of the crop to produce which substance?	Crop milk		Enlace al Art’culo
What structure connects the proventriculus to the gizzard?	The isthmus		Enlace al Art’culo
What is the function of the proventriculus?	Secrete digestive enzymes		Enlace al Art’culo
What type of epithelium lines the proventriculus?	Glandular epithelium Columnar		Enlace al Art’culo
True or False: Parietal cells are present in the proventriculus?	False		Enlace al Art’culo
How many layers of lamina muscularis are present in the proventriculus and in the gizzard?	Inner oblique Middle circular Outer longitudinal		Enlace al Art’culo
What is the function of the gizzard?	Mechanical digestion		Enlace al Art’culo
Why does the gizzard appear yellow in colour?	It is yellow due to bile reflux from the duodenum		Enlace al Art’culo
What type of epithelium is present in the gizzard?	Cuboidal Keratinised Koilin cuticle present		Enlace al Art’culo
Which species do not have a gizzard?	Raptors Owls Gulls		Enlace al Art’culo
What organ is present in between the duodenal loops?	The pancreas		Enlace al Art’culo
Where do the pancreatic and bile ducts enter the duodenum?	In the caudal part		Enlace al Art’culo
What is the Vitelline Diverticula?	Small outgrowth of the jejunum Connect to yolk sac in the embryo Also called Merkel's diverticulum		Enlace al Art’culo
How many caeca are present in avians?	Two		Enlace al Art’culo
What type of epithelium and glands lines the caeca?	Columnar Mucous cells		Enlace al Art’culo
Which avian species does not have caeca?	Parrots		Enlace al Art’culo
What colour is the avian liver?	Dark brown		Enlace al Art’culo
How many lobes does the avian liver have?	Two The right lobe is larger than the left lobe		Enlace al Art’culo
Which species do not have a gall bladder?	Pigeons Parrots		Enlace al Art’culo
What part of the cloaca does the alimentary system terminate in?	The coprodeum		Enlace al Art’culo