Question

Which of the following is the correct pathway of food movement in the digestive tract of a rabbit?

  • Oesophagus, large intestine, small intestine, rectum
  • Oesophagus, small intestine, large intestine, rectum
  • Small intestine, oesophagus, large intestine, rectum
  • Oesophagus, large intestine, rectum, small intestine

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Answer

Correct Pathway for Food Movement in a Rabbit's Digestive Tract:

The correct answer is B: Oesophagus, small intestine, large intestine, rectum.

Rabbit's Digestive System

Rabbits are herbivorous animals, meaning they primarily feed on plants. The movement of food through a rabbit's alimentary canal begins at the buccal cavity and proceeds to the anus.

  1. Buccal Cavity and Teeth: This is the initial part where the food is masticated (chewed) and physically broken down into smaller particles.

  2. Oesophagus: The chewed food travels through the oesophagus, a tubular structure that connects the mouth to the stomach.

  3. Stomach: Upon reaching the stomach, the food is subjected to digestive enzymes and acids that further break down the food particles.

  4. Small Intestine: The food then moves into the small intestine, where the majority of nutrient absorption occurs. At the junction of the small and large intestines is a sac called the caecum.

  5. Caecum: This thin-walled sac is crucial for the digestion of cellulose from plant-based food, facilitated by bacterial action.

  6. Large Intestine: The remaining undigested food moves into the large intestine, which comprises the colon and the rectum.

  7. Rectum: The rectum is the final section of the large intestine, which stores the waste until it is excreted.

  8. Anus: The digestive process concludes with the waste being expelled through the anus.

Thus, the food follows the sequence: Oesophagus → Stomach → Small Intestine → Caecum → Large Intestine (including Colon and Rectum) → Anus.


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