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

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

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Multiple Choice

How many deciduous (primary) teeth are present in a complete set in humans?

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Verified step by step guidance

Step 1: Understand the term 'deciduous teeth.' These are the primary teeth, also known as baby teeth, which are temporary and eventually replaced by permanent teeth.

Step 2: Recall that humans typically have two sets of teeth during their lifetime: the deciduous (primary) teeth and the permanent teeth. The deciduous teeth are present during childhood.

Step 3: Learn the composition of a complete set of deciduous teeth. There are 20 teeth in total, consisting of 10 in the upper jaw (maxilla) and 10 in the lower jaw (mandible). These include: 4 incisors, 2 canines, and 4 molars in each jaw.

Step 4: Compare the number of deciduous teeth to the permanent teeth. Permanent teeth total 32, which includes additional premolars and molars not present in the deciduous set.

Step 5: Confirm that the correct answer to the question is 20, as this is the total number of deciduous teeth in a complete set in humans.