Write a short note on the organ that disinte- grates the old red blood cells.

Explanation

**Step-by-Step Solution:**

1. **Introduction to the Organ**: The organ responsible for disintegrating old red blood cells is the spleen. It plays a crucial role in the body's blood management system.

2. **Location of the Spleen**: The spleen is located in the upper left part of the abdomen, behind the stomach and above the left kidney. Its position is important as it allows it to effectively filter blood.

3. **Function of the Spleen**: The primary function of the spleen is to disintegrate old red blood cells. As red blood cells age, they become less efficient, and the spleen helps to break them down.

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