Question:
Among the four divisions of the stomach in ruminants, the most anterior and the smallest part which lies opposite to the 6th, 7th and 8th rib is
Among the four divisions of the stomach in ruminants, the most anterior and the smallest part which lies opposite to the 6th, 7th and 8th rib is
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Because of the reticulum's cranial position directly against the diaphragm and its proximity to the heart, swallowed metallic foreign objects (like nails or wires) can penetrate the reticulum wall and cause traumatic reticuloperitonitis (Hardware Disease).
Updated On: Aug 24, 2026
- Rumen
- Reticulum
- Omasum
- Abomasum
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
Ruminants possess a complex, four-compartment stomach consisting of three non-glandular fore-stomachs (rumen, reticulum, omasum) and one glandular true stomach (abomasum).
Step 2: Detailed Explanation:
Let us review the anatomical positions of these compartments:
- The rumen is the largest compartment, occupying most of the left half of the abdominal cavity.
- The reticulum (honeycomb) is the most cranial (anterior) and the smallest of the three fore-stomachs. It lies directly against the diaphragm, opposite to the 6th, 7th, and 8th ribs, almost entirely on the median plane.
- The omasum lies to the right of the rumen and reticulum.
- The abomasum is located ventral to the omasum on the abdominal floor.
Therefore, the reticulum is the most anterior and smallest compartment matching this description.
Step 3: Final Answer
The correct option is (B).
Ruminants possess a complex, four-compartment stomach consisting of three non-glandular fore-stomachs (rumen, reticulum, omasum) and one glandular true stomach (abomasum).
Step 2: Detailed Explanation:
Let us review the anatomical positions of these compartments:
- The rumen is the largest compartment, occupying most of the left half of the abdominal cavity.
- The reticulum (honeycomb) is the most cranial (anterior) and the smallest of the three fore-stomachs. It lies directly against the diaphragm, opposite to the 6th, 7th, and 8th ribs, almost entirely on the median plane.
- The omasum lies to the right of the rumen and reticulum.
- The abomasum is located ventral to the omasum on the abdominal floor.
Therefore, the reticulum is the most anterior and smallest compartment matching this description.
Step 3: Final Answer
The correct option is (B).
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