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

Anatomical Terms for the Head and Neck

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Anatomical Terms for the Head and Neck

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Multiple Choice

In the adult human dental formula 2-1-2-3, what does the '1' represent?

Premolar teeth

Incisor teeth

Molar teeth

Canine teeth

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Verified step by step guidance

Step 1: Understand the adult human dental formula 2-1-2-3. This formula represents the number of each type of tooth in one quadrant of the mouth (upper or lower jaw). The numbers correspond to incisors, canines, premolars, and molars, respectively.

Step 2: Break down the formula: '2' represents two incisors, '1' represents one canine, '2' represents two premolars, and '3' represents three molars in one quadrant.

Step 3: Focus on the '1' in the formula. This number indicates the presence of one canine tooth in each quadrant of the mouth.

Step 4: Recall the function and location of canine teeth. Canines are pointed teeth located between the incisors and premolars. They are designed for tearing food.

Step 5: Confirm that the correct answer is 'Canine teeth,' as the '1' in the dental formula specifically represents one canine tooth in each quadrant.