Pulp cavity of teeth opens

Options

A. Below the teeth
B. In front of teeth
C. Behind the teeth
D. none of the above

Answer

### Step-by-Step Solution:

1. **Understand the Structure of the Tooth**:
- The tooth is divided into three main parts: the crown, neck, and root.
- The crown is the visible part of the tooth above the gum line.

2. **Identify the Layers of the Tooth**:
- The outermost layer is the enamel, which is hard and transparent.
- Beneath the enamel is the dentine, which is softer than enamel.
- The innermost layer is the pulp, which contains blood vessels and nerves.

3. **Locate the Pulp Cavity**:
- The pulp cavity is the space within the tooth that houses the pulp tissue.
- This cavity is referred to as the pulp chamber.

4. **Examine the Root Structure**:
- The pulp chamber extends into the root of the tooth, where it is known as the root canals.
- The root canals are small tubular structures that contain the pulp.

5. **Identify the Opening of the Pulp Cavity**:
- At the lower end of the root canals, there is an opening called the apical foramen.
- The apical foramen is a small hole located at the apex (tip) of the root.

6. **Conclusion**:
- The pulp cavity of the teeth opens through the apical foramen, which is located below the teeth.

### Final Answer:
The pulp cavity of the teeth opens below the teeth through the apical foramen.

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