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 muscles is named based on the arrangement of its fascicles?

Orbicularis oris

Biceps brachii

Rectus femoris

Gluteus maximus

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Verified step by step guidance

Understand that muscles can be named based on various characteristics, such as their location, size, shape, number of origins, or the arrangement of their fascicles.

Recall that fascicles are bundles of muscle fibers, and their arrangement determines the muscle's function and appearance. Common fascicle arrangements include circular, parallel, convergent, and pennate.

Analyze the names of the muscles provided in the question: Orbicularis oris, Biceps brachii, Rectus femoris, and Gluteus maximus.

Identify that 'Orbicularis oris' is named based on the circular arrangement of its fascicles, which form a ring-like structure around the mouth. This arrangement allows it to control movements such as puckering the lips.

Compare the other options: 'Biceps brachii' is named for its two origins (bi = two, ceps = heads), 'Rectus femoris' is named for its straight alignment (rectus = straight), and 'Gluteus maximus' is named for its size (maximus = largest). These names are not based on fascicle arrangement.