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 Tissues & Histology

Anatomy & Physiology

4. Tissues & Histology

Introduction to Tissues & Histology

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Multiple Choice

Which of the following is a characteristic of absorbable sutures?

They are only used for external skin closure.

They are made exclusively from non-biodegradable materials.

They are broken down and absorbed by the body over time.

They must be removed manually after healing.

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Verified step by step guidance

Understand the purpose of absorbable sutures: Absorbable sutures are designed to be broken down and absorbed by the body over time, eliminating the need for manual removal.

Clarify the material composition: Absorbable sutures are typically made from biodegradable materials, such as natural polymers (e.g., collagen) or synthetic polymers (e.g., polyglycolic acid). These materials are designed to degrade through enzymatic or hydrolytic processes.

Differentiate absorbable sutures from non-absorbable sutures: Non-absorbable sutures are made from materials like nylon or silk and must be manually removed after healing, whereas absorbable sutures do not require removal.

Address the incorrect options: Absorbable sutures are not exclusively used for external skin closure; they are often used internally for tissues that heal over time. Additionally, they are not made from non-biodegradable materials, as their primary characteristic is biodegradability.

Conclude with the correct characteristic: Absorbable sutures are broken down and absorbed by the body over time, making them suitable for internal use and eliminating the need for manual removal.