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 Heart2h 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

10. Muscles

Muscle Actions

Anatomy & Physiology

10. Muscles

Muscle Actions

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Multiple Choice

The __________ is the prime mover of dorsiflexion of the foot.

tibialis anterior

gastrocnemius

soleus

popliteus

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Verified step by step guidance

Understand the concept of dorsiflexion: Dorsiflexion is the action of raising the foot upwards towards the shin. It is an important movement in walking and running.

Identify the muscles involved in dorsiflexion: The primary muscle responsible for dorsiflexion is the tibialis anterior. This muscle is located in the anterior compartment of the leg.

Differentiate between the muscles listed: The gastrocnemius and soleus are primarily involved in plantarflexion, which is the opposite movement of dorsiflexion. The popliteus is involved in knee flexion and rotation, not foot dorsiflexion.

Recognize the role of the tibialis anterior: The tibialis anterior is the prime mover, or agonist, in dorsiflexion. It contracts to lift the foot upwards.

Conclude that the tibialis anterior is the correct answer: Based on the function and location of the muscles, the tibialis anterior is the prime mover of dorsiflexion of the foot.