Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

28. Human Development

Introduction to Human Development

Anatomy & Physiology

28. Human Development

Introduction to Human Development

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Multiple Choice

Which part of the tooth is referred to as the crown?

The visible portion above the gum line

The connective tissue at the root tip

The layer of pulp inside the tooth

The portion embedded in the jawbone

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Verified step by step guidance

Step 1: Understand the anatomy of a tooth. A tooth is divided into three main parts: the crown, the neck, and the root. The crown is the visible portion above the gum line, the neck is the area where the crown meets the root, and the root is embedded in the jawbone.

Step 2: Focus on the definition of the crown. The crown is the part of the tooth that is visible above the gum line and is covered by enamel, which protects the tooth from wear and tear.

Step 3: Eliminate incorrect options. The connective tissue at the root tip refers to the apex of the root, not the crown. The layer of pulp inside the tooth is part of the internal structure, not the visible portion. The portion embedded in the jawbone is the root, not the crown.

Step 4: Confirm the correct answer. Based on the definition, the crown is the visible portion of the tooth above the gum line.

Step 5: Relate this concept to function. The crown plays a critical role in chewing and biting, as it is the part of the tooth that comes into contact with food.