Lower jaw of man is made up of

Options

A. 1 bone
B. 2 bones
C. 3 bones
D. no bones, only muscles

Answer

### Step-by-Step Solution:

1. **Identify the Structure**: The lower jaw in humans is known as the mandible.

2. **Bone Composition**: The mandible is made up of a single bone.

3. **Characteristics of the Mandible**:
- It is the largest bone in the skull.
- It is the strongest bone in the skull.
- It is the only movable bone in the skull, allowing for functions such as chewing and speaking.

4. **Conclusion**: Therefore, the lower jaw of man, which is the mandible, is made up of one single bone.

5. **Final Answer**: The answer to the question "Lower jaw of man is made up of" is option number one: one bone.