Question
Describe the structure of Small Intestine.
✓
Answer
It is about 6 meters long and 2.5 cm broad tube coiled within abdominal cavity.
The coils are held together by mesenteries, supporting the blood vessels, lymph vessels and nerves.
It is divided into three parts.
The coils are held together by mesenteries, supporting the blood vessels, lymph vessels and nerves.
It is divided into three parts.
- Duodenum:
- It is about 26 cm long ‘U’ shaped structure.
- The duodenum turns towards left side of abdominal cavity below the stomach.
- Jejunum:
- It is about 2.5 meters long, coiled middle portion of small intestine.
- It is narrower than the duodenum.
- Ileum:
- It is about 3.5 meters long.
- It is highly coiled and little broader than jejunum.
- The ileum opens into the caecum of large intestine at ileocaecal junction.
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