Grade 12 Biology: Tooth Structure
Explore the intricate anatomy and functions of human teeth at a Grade 12 biology level, covering enamel, dentin, pulp, and cementum.
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Grade 12 Biology: Tooth Structure
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Read each question carefully and provide your best answer based on your knowledge of tooth structure. Refer to the diagram as needed.
Examine the diagram of the human tooth cross-section below:
1. Which of the following is the hardest substance in the human body and covers the crown of the tooth?
Dentin
Pulp
Enamel
Cementum
2. Which part of the tooth contains nerves and blood vessels, providing nutrients and sensation to the tooth?
Dentin
Pulp
Enamel
Cementum
1. The is a bone-like substance that covers the root of the tooth and helps anchor it to the jawbone.
2. Odontoblasts are specialized cells responsible for producing , which makes up the bulk of the tooth.
1. Describe the primary function of enamel and explain why it is crucial for tooth health.
2. Explain the difference between the crown and the root of a tooth, mentioning the key structures found in each.
1. Dentin is softer than cementum but harder than enamel.
True
False
2. The periodontal ligament connects the cementum to the alveolar bone, providing support to the tooth.
True
False