Comparative digestive system Flashcards
What is the name of the glandular or acid stomach of the bird?
A. Ventriculus
B. Crop
C. Proventriculus
D. Aretonotriculus
C. Proventriculus
What is the function of the crop in birds?
A. Grinds food
B. Storage organ
C. Procedures digestive enzymes
D. Has no function
B. Storage organ
In birds, what is the name given to the most distal part of the digestive tract, where waste is excreted?
A. Anus
B. Colon
C. Cloaca
D. Ano-genital orifice
C. Cloaca
What part of the digestive tract contains grit that the bird ingests to assist with grinding food?
A. Crop
B. Proventriculus
C. Ventriculus (or gizzard)
D. Small intestine
C. Ventriculus (or gizzard)
What time of day is caecatrophy often performed?
At night
What type of pellet is involved in caecatrophy?
Caecal pellet
Name 3 disinctive characteristics of the Caecal pellets
- ‘Grape’ shaped
- Dark colour (in comparison to normal faecal pellets)
- Moist
Why is caecatrophy performed?
To ensure all possible nutrients are extracted from their food
True or False.
The ventriculus is a thin walled stomach chambe that contains grit to grind up food.
False, the ventriculus, otherwise known as the gizzard, is a thick-walled chamber, as it is strongly muscular to provide more effiecent grinding of stomach contents!
What is the function of the crop in some species of bird?
A storage organ for food
Name the 2 chambers of the stomach that are present in the majority of most species of bird
- Proventriculus (Glandular)
- Ventriculus (Gizzard)
Name 1 species of bird that does not contain a ventriculus?
The Hummingbird, due to it’s liquid nectivorous diet
Why does a budgerigar posses 2 large caeca, whereas the sunbird does not posses any?
Because the budgerigar is herbivorous, therefore they require a greater site for bacterial digestion for their high-vegetable matter diet.
Whereas the sunbird, is nectivorous + therefore does not require one.
