Label the parts of a tooth worksheet.

Let's solve the task of labeling the parts of a tooth based on the provided diagram.

Step-by-step Analysis:

The image shows a cross-sectional view of a human tooth, including both the crown (visible part) and the root (embedded in the jawbone). The five labeled sections (yellow boxes) correspond to different anatomical parts of the tooth. We'll identify each one from top to bottom based on standard dental anatomy.

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1. Topmost label (white outer layer of the crown)

- This is the Enamel.
- It is the hardest and most mineralized tissue in the body, covering the visible part of the tooth.

✔ Label: Enamel

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2. Second label (yellowish layer beneath enamel)

- This is the Dentin.
- It lies underneath the enamel and makes up most of the tooth structure. It is less hard than enamel but still very strong.

✔ Label: Dentin

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3. Third label (pinkish area inside the tooth with blood vessels and nerves)

- This is the Pulp.
- It contains nerves, blood vessels, and connective tissue. It is located in the center of the tooth.

✔ Label: Pulp

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4. Fourth label (thin white layer around the root)

- This is the Cementum.
- It covers the root of the tooth and helps anchor it to the bone via the periodontal ligament.

✔ Label: Cementum

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5. Bottom label (the pink tissue surrounding the root, connecting tooth to bone)

- This is the Periodontal Ligament.
- It connects the cementum of the tooth to the alveolar bone and acts as a shock absorber during chewing.

✔ Label: Periodontal Ligament

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Final Answer:

From top to bottom, the correct labels are:

1. Enamel
2. Dentin
3. Pulp
4. Cementum
5. Periodontal Ligament

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Summary:

Each part plays a crucial role:
- Enamel: Protects the tooth surface.
- Dentin: Supports the enamel and transmits sensation.
- Pulp: Nourishes the tooth and provides sensation.
- Cementum: Anchors the tooth to the bone.
- Periodontal Ligament: Holds the tooth in place and absorbs forces.

This completes the labeling task correctly. ✔