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

Sliding Filament Theory and the Sacromere

Anatomy & Physiology

9. Muscle Tissue

Sliding Filament Theory and the Sacromere

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

What is primarily found in the I-bands of sarcomeres?

Myosin filaments

Troponin complexes

Actin filaments

Titin proteins

Previous problemNext problem

Verified step by step guidance

Understand the structure of a sarcomere: Sarcomeres are the basic contractile units of muscle fibers, composed of overlapping thick and thin filaments.

Identify the components of the sarcomere: The thick filaments are primarily composed of myosin, while the thin filaments are primarily composed of actin.

Locate the I-band within the sarcomere: The I-band is the region of the sarcomere that contains only thin filaments and is lighter in appearance under a microscope.

Recognize the primary component of the I-band: Since the I-band contains only thin filaments, it is primarily composed of actin filaments.

Differentiate between other proteins: Troponin complexes are regulatory proteins associated with actin, and titin proteins are elastic proteins that help maintain the structure of the sarcomere, but they are not the primary component of the I-band.