Typical vertebra of Human is `:-`

Options

A. Acoelous
B. Procoelous
C. Amphicoelous
D. None of the above

Answer

### Step-by-Step Solution:

1. **Understanding Vertebrae**:
- The vertebra is a complex structure that forms the backbone in humans and other vertebrates. Each vertebra consists of a central portion called the centrum.

2. **Identifying the Centrum**:
- The centrum is crucial as it articulates with other vertebral bodies. The shape of the anterior (front) and posterior (back) faces of the centrum influences the flexibility and strength of the vertebral column.

3. **Types of Vertebrae**:
- There are different types of vertebrae based on the shape of their anterior and posterior surfaces:
- **Acellus (Amphiplatin)**: Both anterior and posterior surfaces are flat. This type is characteristic of mammals, including humans, and is designed to handle compressive forces effectively.
- **Procellus**: Concave on the anterior side and convex on the posterior side, typically found in reptiles.
- **Amphicellus**: Both surfaces are concave, allowing for a wider range of motion, commonly found in fishes and some amphibians.

4. **Analyzing the Options**:
- Based on the definitions:
- The **Acellus (Amphiplatin)** vertebra is the one that belongs to humans as it has flat anterior and posterior surfaces.
- The **Procellus** and **Amphicellus** vertebrae do not belong to humans as they are found in reptiles and fishes, respectively.

5. **Conclusion**:
- The correct answer to the question "Typical vertebra of Human is" is **Acellus (Amphiplatin)**.