Which parts of humerus articulate with radius at the elbow, and with ulna at the elbow?

Explanation

To answer the question regarding which parts of the humerus articulate with the radius and ulna at the elbow, we can break down the solution into clear steps:

### Step-by-Step Solution:

1. **Identify the Bones Involved**: Recognize that the bones involved in the articulation at the elbow are the humerus, radius, and ulna.

2. **Articulation with the Radius**:
- The specific parts of the humerus that articulate with the radius are the **capitulum** and the **radial fossa**.
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