Table of contents

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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

What are the muscular ridges within the ventricles called?

Papillary muscles

Pectinate muscles

Trabeculae carneae

Chordae tendineae

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Verified step by step guidance

Understand the anatomy of the heart: The heart is divided into four chambers, two atria and two ventricles. The ventricles are the lower chambers responsible for pumping blood out of the heart.

Identify the structures within the ventricles: The ventricles contain several important structures, including muscular ridges, which play a role in the heart's function.

Differentiate between the options: Papillary muscles are involved in anchoring the chordae tendineae, which prevent valve prolapse. Pectinate muscles are found in the atria, not the ventricles.

Focus on trabeculae carneae: These are the muscular ridges found on the inner walls of the ventricles. They help prevent the walls of the ventricles from sticking together during contraction.

Conclude with the correct identification: The muscular ridges within the ventricles are called trabeculae carneae, distinguishing them from other muscular structures in the heart.