explain the digestive system of birds
Answers
Explanation:
Birds have evolved a digestive system that includes a gizzard where the food is crushed into smaller pieces. This compensates for their inability to masticate. Ruminants that consume large amounts of plant material have a multi-chambered stomach that digests roughage.
As like the other animals the digestive system of birds are also consist of _
•Salivary glands.
•Pharynx.
•Esophagus.
•Stomach.
•Small Intestine.
•Large Intestine.
•Rectum.
•Accessory digestive organs: liver, gallbladder, pancreas.
But the digestive system of birds are different from other animals because, generally we found only one stomach in other animals but incase of birds there are two stomachs.
Explanation:
The four basic types of digestive systems in animals are monogastric, avian, ruminant, and pseudo-ruminant. Monogastric animals, such as swine, eat rations high in concentrates. The avian digestive system, found in poultry, is completely different from the other three types of digestive systems. Birds have evolved a digestive system that includes a gizzard where the food is crushed into smaller pieces. This compensates for their inability to masticate. Ruminants that consume large amounts of plant material have a multi-chambered stomach that digests roughage. The cloaca is an expanded, tubular structure that serves as the common opening of the digestive, reproductive and urinary systems, which opens to the outside of the bird as the vent. As in mammals, the large intestine's primary function is absorption of water and electrolytes.
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