Deltoid ridge of humerus is meant for

Options

A. Articulation
B. Attachment of muscles
C. Protection
D. None of the above.

Answer

### Step-by-Step Solution:

1. **Identify the Structure**: The deltoid ridge is a prominent feature on the humerus, which is the long bone of the upper arm.

2. **Understand the Function of the Humerus**: The humerus connects the upper arm to the pectoral girdle and is essential for arm movement.

3. **Define the Deltoid Ridge**: The deltoid ridge is an elevation on the lateral side of the humerus.

4. **Determine the Purpose of the Deltoid Ridge**: The primary function of the deltoid ridge is to serve as an attachment point for muscles.

5. **Identify the Specific Muscle**: The deltoid ridge specifically provides an attachment for the deltoid muscle, which is responsible for shoulder abduction and other movements of the arm.

6. **Conclude the Answer**: Therefore, the deltoid ridge of the humerus is meant for the attachment of the deltoid muscle.

### Final Answer:
The deltoid ridge of the humerus is meant for the attachment of the deltoid muscle.

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