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

19. The Blood Vessels

Introduction to Blood Vessels

Anatomy & Physiology

19. The Blood Vessels

Introduction to Blood Vessels

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Multiple Choice

Which of the following describes why the body might need to increase vessel length?

To accommodate growth and development, such as during puberty or pregnancy.

To decrease blood pressure by reducing resistance.

To increase the speed of blood flow through the circulatory system.

To enhance oxygen exchange efficiency in the lungs.

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Verified step by step guidance

Understand that vessel length in the circulatory system can change in response to physiological needs.

Recognize that during periods of growth and development, such as puberty or pregnancy, the body undergoes significant changes that may require an increase in vessel length to support the growing tissues and organs.

Consider how increased vessel length can accommodate the increased demand for blood supply to new or expanding tissues, ensuring adequate nutrient and oxygen delivery.

Acknowledge that while vessel length can affect blood pressure and flow, the primary reason for increasing vessel length is to support growth and development rather than directly altering blood pressure or flow speed.

Conclude that the body's need to increase vessel length is primarily to accommodate growth and development, ensuring that all tissues receive sufficient blood supply during these critical periods.