Find out the set of bones that are not included in the axial skeleton.

Options

A. Clavicle, Scapula, Coxal
B. Sternum, Ribs , Skull
C. Vertebrae, Cranial , Ribs
D. Skull , Sterum , Vertebrae

Answer

To solve the question of which set of bones is not included in the axial skeleton, we can follow these steps:

### Step 1: Understand the Axial Skeleton
The axial skeleton includes the bones that form the long axis of the body. It consists of:
- The skull (which includes cranial and facial bones)
- The vertebral column (which includes vertebrae, sacrum, and coccyx)
- The thoracic cage (which includes ribs and sternum)

### Step 2: Identify the Appendicular Skeleton
The appendicular skeleton includes the bones of the limbs and the girdles that attach them to the axial skeleton. This includes:
- Clavicles (collarbones)
- Scapulae (shoulder blades)
- Bones of the arms and legs

### Step 3: Analyze the Options
Now, let’s analyze the provided options to determine which set of bones does not belong to the axial skeleton:

1. **Option 1: Clavicle, Scapula, and Coccyx**
- Clavicle and scapula are part of the appendicular skeleton, while coccyx is part of the axial skeleton.

2. **Option 2: Sternum, Ribs, Skull**
- All these bones are part of the axial skeleton.

3. **Option 3: Vertebrae, Cranial, Ribs**
- All these bones are part of the axial skeleton.

4. **Option 4: Skull, Sternum, and Vertebrae**
- All these bones are part of the axial skeleton.

### Step 4: Conclusion
From the analysis, we can conclude that **Option 1** (Clavicle, Scapula, and Coccyx) includes bones that are not entirely part of the axial skeleton since both the clavicle and scapula belong to the appendicular skeleton.

### Final Answer
The set of bones that are not included in the axial skeleton is **Option 1: Clavicle, Scapula, and Coccyx**.

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