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 Leg and Foot

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Anatomical Terms for the Leg and Foot

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Multiple Choice

Which muscle is located in the anterior compartment of the leg and is primarily responsible for dorsiflexion of the foot?

Gastrocnemius

Fibularis longus

Tibialis anterior

Soleus

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Verified step by step guidance

Step 1: Understand the anatomical location of the anterior compartment of the leg. The anterior compartment is located at the front of the lower leg and contains muscles responsible for dorsiflexion (lifting the foot upward).

Step 2: Review the primary function of dorsiflexion. Dorsiflexion involves decreasing the angle between the dorsum (top) of the foot and the shin, which is essential for walking and maintaining balance.

Step 3: Identify the muscles in the anterior compartment of the leg. The key muscles include the tibialis anterior, extensor digitorum longus, and extensor hallucis longus. Among these, the tibialis anterior is the primary muscle responsible for dorsiflexion.

Step 4: Compare the listed options. Gastrocnemius and soleus are located in the posterior compartment of the leg and are responsible for plantarflexion (pointing the foot downward). Fibularis longus is in the lateral compartment and assists with eversion of the foot, not dorsiflexion.

Step 5: Conclude that the tibialis anterior is the correct answer because it is located in the anterior compartment and is primarily responsible for dorsiflexion of the foot.