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

10. Muscles

Muscle Actions

Anatomy & Physiology

10. Muscles

Muscle Actions

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Multiple Choice

Which of the following is an action of the biceps brachii muscle?

Abduction of the shoulder

Extension of the elbow

Flexion of the elbow

Adduction of the wrist

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Verified step by step guidance

Understand the anatomy of the biceps brachii muscle: It is a two-headed muscle located in the upper arm between the shoulder and the elbow.

Identify the primary functions of the biceps brachii: The muscle is primarily responsible for flexion of the elbow and supination of the forearm.

Consider the actions listed in the problem: Abduction of the shoulder, extension of the elbow, flexion of the elbow, and adduction of the wrist.

Evaluate each action in relation to the biceps brachii: Abduction of the shoulder and adduction of the wrist are not actions performed by the biceps brachii. Extension of the elbow is the opposite of flexion, which the biceps brachii performs.

Conclude that the correct action performed by the biceps brachii is flexion of the elbow, as it is the primary function of this muscle.