Question:medium

In Pheretima, gizzard lies in this segment(s):

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Sequence: B-P-O-G-S-I (Buccal, Pharynx, Oesophagus, Gizzard, Stomach, Intestine). Gizzard grinds (8th).
Updated On: Jun 9, 2026
  • 1 - 3
  • 4
  • 5 - 7
  • 8
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The Correct Option is D

Solution and Explanation


Step 1: Recall Earthworm (\textit{Pheretima posthuma}) Digestive System:
The alimentary canal is a straight tube with the following segmentation:
Mouth: 1st segment.
Buccal Chamber: 1st - 3rd segments.
Pharynx: 4th segment.
Oesophagus: 5th - 7th segments.
Gizzard: 8th segment (muscular organ for grinding soil).
Stomach: 9th - 14th segments.
Intestine: 15th segment to the last.

Step 2: Identify the Answer:
The gizzard is located in the 8th segment.
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