Avian Digestive System. The avian digestive system is the type found in poultry. This system differs greatly! Since a bird has no teeth, no chewing.

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Presentation transcript:

Avian Digestive System

The avian digestive system is the type found in poultry. This system differs greatly! Since a bird has no teeth, no chewing The esophagus empties directly into the crop. Crop = where the food is stored and soaked. Proventriculus = glandular stomach (HCI and gastric juices); enzymatic (like a human stomach) Gizzard = very muscular organ, which normally contains stones or grit that grinds the food. Cloaca = posterior opening (similar to anus) – one opening for urinary, intestinal and reproductive tract

Questions?

Just for Fun… Which mammal has the longest digestive system? Guesses???

Koala Largest Herbivore

Just for Fun… How long does digestion take… Guesses???

IT DEPENDS… What was eating What animal is digesting If digestive tract/bacteria are working correctly (Average 3-6 hours) Ferrets = FASTEST (30 min)

Sloths Everything about a sloth is slow- moving, including his digestive system. It can take up to a month

Just for Fun… How many stomachs does a whale have? Guesses???

Whales have a three- sectioned stomach. The first section of a whale's stomach breaks down its food by crushing. The second section mixes the food with digestive juices and the third further mixes the food and digestive juices.

Additional Resources Video Link to Fistula Cow Video Link to 3D Horse Digestion Guide CrashCourse Video – Digestion Cat Dissection Video – Digestive Tract

Questions?