The acromion process is a part of the

Options

A. humerus
B. sternum
C. clavicle
D. scapula

Answer

To determine which bone the acromion process is a part of, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Bones Involved**: The question provides four options: humerus, sternum, clavicle, and scapula. We need to understand the role of each in the shoulder girdle.

2. **Understand the Structure of the Shoulder Girdle**: The shoulder girdle consists of three main bones: the scapula (shoulder blade), clavicle (collarbone), and the humerus (the upper arm bone).

3. **Locate the Acromion Process**: The acromion process is a bony projection on the scapula. It extends laterally over the shoulder joint and forms the highest point of the shoulder.

4. **Connect the Acromion Process to the Clavicle**: The acromion process articulates with the clavicle at the acromioclavicular joint. This connection is crucial for shoulder movement and stability.

5. **Conclude the Answer**: Since the acromion process is a projection from the scapula, we conclude that the correct answer to the question is the scapula.

### Final Answer:
The acromion process is a part of the **scapula**.

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