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 Directional Terms

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Directional Terms

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Multiple Choice

Bending your head back until it hurts is an example of which directional movement?

Extension

Abduction

Flexion

Rotation

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Verified step by step guidance

Understand the definitions of the directional movements provided in the options: Extension, Abduction, Flexion, and Rotation.

Extension refers to increasing the angle between two body parts, often moving a joint back to its anatomical position or beyond. For example, bending your head backward increases the angle between the neck and the head.

Abduction refers to moving a body part away from the midline of the body, such as raising your arm sideways away from your torso.

Flexion refers to decreasing the angle between two body parts, such as bending your elbow or bringing your chin closer to your chest.

Rotation refers to the movement of a body part around its axis, such as turning your head side to side. Based on these definitions, bending your head back until it hurts aligns with the concept of extension.