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 muscle is an antagonist to the biceps brachii muscle?

Pectoralis major

Latissimus dorsi

Triceps brachii

Deltoid

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Verified step by step guidance

Understand the concept of muscle antagonism: In anatomy, an antagonist muscle is one that opposes the action of another muscle, known as the agonist. When the agonist contracts, the antagonist relaxes or stretches to allow movement.

Identify the primary function of the biceps brachii: The biceps brachii is a muscle located in the upper arm. Its main function is to flex the elbow and supinate the forearm, meaning it helps to bend the arm at the elbow and rotate the forearm so the palm faces upward.

Determine the opposing action: To find the antagonist, consider the opposite action of the biceps brachii. The opposite of flexing the elbow is extending the elbow.

Identify the muscle responsible for elbow extension: The triceps brachii is the muscle primarily responsible for extending the elbow. It is located on the back of the upper arm and works to straighten the arm at the elbow joint.

Conclude the relationship: Since the triceps brachii extends the elbow, opposing the flexion action of the biceps brachii, it is the antagonist to the biceps brachii.