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 Organ Systems

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

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Multiple Choice

Which of the following ligaments prevents the tibia from sliding forward in the knee joint?

Posterior cruciate ligament (PCL)

Medial collateral ligament (MCL)

Anterior cruciate ligament (ACL)

Lateral collateral ligament (LCL)

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Verified step by step guidance

Understand the anatomy of the knee joint: The knee joint is stabilized by several ligaments, including the anterior cruciate ligament (ACL), posterior cruciate ligament (PCL), medial collateral ligament (MCL), and lateral collateral ligament (LCL). Each ligament has a specific function in maintaining joint stability.

Focus on the function of the anterior cruciate ligament (ACL): The ACL is responsible for preventing the tibia (shinbone) from sliding forward relative to the femur (thighbone). This is a critical function during activities like walking, running, and jumping.

Compare the functions of the other ligaments: The posterior cruciate ligament (PCL) prevents the tibia from sliding backward, while the medial collateral ligament (MCL) and lateral collateral ligament (LCL) provide stability to the sides of the knee joint, preventing excessive side-to-side movement.

Identify the correct ligament based on the problem: Since the question asks which ligament prevents the tibia from sliding forward, the correct answer is the anterior cruciate ligament (ACL). This matches the specific function of the ACL in knee joint stabilization.

Review the importance of ligament integrity: Damage to the ACL, such as a tear, can lead to instability in the knee joint and difficulty in performing activities that require forward movement control. This highlights the importance of the ACL in maintaining proper knee function.