Table of contents

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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

9. Muscle Tissue

Introduction to Muscles and Muscle Tissue

Anatomy & Physiology

9. Muscle Tissue

Introduction to Muscles and Muscle Tissue

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Multiple Choice

The rectus femoris muscle extends the leg at the:

hip joint

shoulder joint

knee joint

ankle joint

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Verified step by step guidance

Step 1: Begin by identifying the rectus femoris muscle. It is one of the four muscles that make up the quadriceps group, located in the anterior compartment of the thigh.

Step 2: Understand the primary function of the rectus femoris muscle. It is responsible for extending the leg at the knee joint and also assists in flexing the thigh at the hip joint.

Step 3: Analyze the options provided in the question. The rectus femoris does not act on the shoulder joint or the ankle joint, as these are unrelated to its anatomical location and function.

Step 4: Recall that the knee joint is the hinge joint where the quadriceps group, including the rectus femoris, exerts its action to extend the leg.

Step 5: Conclude that the correct answer is the knee joint, as this is the joint where the rectus femoris muscle performs its primary function of leg extension.