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

4. Tissues & Histology

Introduction to Muscle Tissue

Anatomy & Physiology

4. Tissues & Histology

Introduction to Muscle Tissue

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Multiple Choice

Which muscle is characterized by a parallel fascicle orientation?

Pectoralis major

Deltoid

Rectus abdominis

Orbicularis oris

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Verified step by step guidance

Understand the concept of fascicle orientation: Fascicles are bundles of muscle fibers, and their arrangement determines the muscle's function and movement. Parallel fascicle orientation means the fibers run parallel to each other along the length of the muscle.

Review the characteristics of the listed muscles: The Pectoralis major has a convergent fascicle arrangement, the Deltoid has a multipennate arrangement, the Orbicularis oris has a circular arrangement, and the Rectus abdominis has a parallel fascicle arrangement.

Focus on the Rectus abdominis: This muscle is a long, strap-like muscle located in the anterior abdominal wall. Its fibers run parallel to each other, making it an example of a muscle with parallel fascicle orientation.

Understand the functional significance: Muscles with parallel fascicle orientation, like the Rectus abdominis, are designed for producing a greater range of motion but less force compared to muscles with other fascicle arrangements.

Confirm the correct answer: Based on the fascicle orientation, the Rectus abdominis is the muscle characterized by parallel fascicle orientation.