Coxal bone is the component of

Options

A. pelvic girdle
B. elbow joint
C. pectoral girdle
D. knee joint

Answer

**Step-by-Step Solution:**

1. **Understanding the Coxal Bone**: The coxal bone is a significant structure in the human skeletal system. It is essential to identify what the coxal bone consists of and its role in the body.

2. **Components of the Coxal Bone**: The coxal bone is formed by the fusion of three bones: the ilium, ischium, and pubis. This fusion creates a single, large bone that plays a crucial role in the structure of the pelvis.

3. **Formation of the Acetabulum**: When these three bones fuse together, they create a cavity known as the acetabulum. This cavity is important because it serves as the socket for the femur (thigh bone), allowing for hip joint movement.

4. **Location of the Coxal Bone**: The coxal bones are found in pairs, meaning there are two coxal bones in the human body. These bones are part of the pelvic girdle, which supports the weight of the upper body when sitting and standing and provides attachment points for the lower limbs.

5. **Identifying the Correct Option**: Given the options provided:
- Option 1: Pelvic girdle
- Option 2: Elbow joint
- Option 3: Pectoral girdle
- Option 4: Knee joint

Since the coxal bone is a component of the pelvic girdle, the correct answer is **Option 1: Pelvic girdle**.

**Final Answer**: Coxal bone is the component of the pelvic girdle.

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