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

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

Which of the following pairs of muscles are antagonists?

Rectus abdominis and external oblique

Biceps brachii and triceps brachii

Quadriceps femoris and hamstrings

Pectoralis major and latissimus dorsi

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Verified step by step guidance

Understand the concept of antagonistic muscles: Antagonistic muscles are pairs of muscles that work against each other to move a joint. When one muscle contracts, the other muscle in the pair relaxes, allowing for smooth and controlled movements.

Identify the function of each muscle in the pairs provided: For example, the biceps brachii is responsible for flexing the elbow, while the triceps brachii extends the elbow.

Analyze the movement each muscle pair is responsible for: Determine if the muscles in each pair perform opposite actions. For instance, the quadriceps femoris extends the knee, while the hamstrings flex the knee.

Compare the actions of each muscle pair: Check if the muscles in each pair are responsible for opposite movements at the same joint, which would classify them as antagonists.

Conclude which pairs are antagonists: Based on the analysis, identify the pairs that perform opposite actions, such as the biceps brachii and triceps brachii, and the quadriceps femoris and hamstrings.