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

When is a muscle considered overactive?

When it remains completely relaxed during movement

When it is unable to generate any force during contraction

When it only contracts in response to voluntary movement

When it is consistently contracted and inhibits the function of its opposing muscle group

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Verified step by step guidance

Step 1: Understand the concept of muscle activity. Muscles are considered overactive when they remain in a state of excessive contraction, even when they should be relaxed during certain movements.

Step 2: Learn about the role of opposing muscle groups. Muscles work in pairs, known as agonist and antagonist groups. When one muscle contracts, its opposing muscle should relax to allow smooth movement.

Step 3: Recognize the impact of overactive muscles. If a muscle is consistently contracted, it can inhibit the function of its opposing muscle group, leading to imbalances and restricted movement.

Step 4: Differentiate overactive muscles from other conditions. Overactive muscles are not completely relaxed during movement, nor are they unable to generate force during contraction. They also do not contract solely in response to voluntary movement.

Step 5: Apply this knowledge to identify overactive muscles in practical scenarios, such as postural assessments or movement analysis, where muscle imbalances may be observed.