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

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

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Multiple Choice

Which of the following statements correctly characterizes perforating canals (Volkmann's canals) in bone?

They are found only in spongy bone and contain bone marrow.

They are lined with cartilage and serve as sites for muscle attachment.

They run perpendicular to the long axis of the bone and connect central canals of adjacent osteons.

They contain only nerves and do not carry blood vessels.

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Verified step by step guidance

Step 1: Begin by understanding the structure of compact bone, which is organized into osteons (Haversian systems). Osteons are cylindrical structures that contain a central canal (Haversian canal) surrounded by concentric lamellae.

Step 2: Recognize the role of perforating canals (Volkmann's canals). These canals are essential for connecting the central canals of adjacent osteons, allowing for communication and the transport of nutrients and waste.

Step 3: Note the orientation of perforating canals. Unlike central canals, which run parallel to the long axis of the bone, perforating canals run perpendicular to the long axis of the bone.

Step 4: Understand the contents of perforating canals. They contain blood vessels and nerves, which are crucial for maintaining the health and function of bone tissue.

Step 5: Eliminate incorrect options by comparing their descriptions to the anatomical and physiological characteristics of perforating canals. For example, they are not found only in spongy bone, are not lined with cartilage, and do not contain only nerves without blood vessels.