Mention the exact location : Stomach

Explanation

### Step-by-Step Solution:

1. **Understanding the Structure of the Stomach**: The stomach is described as having a J-shaped structure. This shape is important for its function in digestion.

2. **Identifying the Location**: The stomach is located in the upper left portion of the abdominal cavity. This means that if you were to look at a diagram of the human body, you would find the stomach situated towards the left side, just below the ribcage.

3. **Relation to Other Organs**: The diaphragm, which is a muscle that separates the thoracic cavity (where the lungs are located) from the abdominal cavity, is positioned at the middle of the thoracic region. The stomach lies below this diaphragm in the abdominal cavity.

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