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 identifying the set of bones that are not included in the axial skeleton, we can follow these steps:

### Step 1: Understand the Axial Skeleton
The axial skeleton consists of the bones that form the long axis of the body. This includes the skull, vertebral column (spine), and rib cage (sternum and ribs). The primary function of the axial skeleton is to support and protect the organs of the head, neck, and trunk.

### Step 2: Identify the Appendicular Skeleton
The appendicular skeleton includes the bones of the limbs and the girdles (shoulder bones and pelvic bones) that attach the limbs to the axial skeleton. This includes the clavicle, scapula, and pelvic bones (coxae).

### Step 3: Analyze the Options
Now, let's analyze the options given in the question:

1. **Clavicle, Scapula, and Coxal**: These bones are part of the appendicular skeleton and are not included in the axial skeleton. **(Correct)**

2. **Sternum, Ribs, and Skull**: All these bones are part of the axial skeleton. **(Incorrect)**

3. **Vertebrae, Cranial, and Ribs**: These bones are also part of the axial skeleton. **(Incorrect)**

4. **Skull, Sternum, and Vertebrae**: Again, all these bones are part of the axial skeleton. **(Incorrect)**

### Step 4: Conclusion
From the analysis, the only option that lists bones not included in the axial skeleton is the first option: **Clavicle, Scapula, and Coxal**.

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

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