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 veins are responsible for returning blood from the lower limbs to the inferior vena cava?

Hepatic veins

Renal veins

Subclavian veins

Common iliac veins

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Verified step by step guidance

Step 1: Understand the role of veins in the circulatory system. Veins are responsible for returning deoxygenated blood to the heart. The inferior vena cava is the largest vein in the body and collects blood from the lower part of the body, including the lower limbs.

Step 2: Identify the anatomical location of the lower limbs and trace the venous blood flow. Blood from the lower limbs flows through smaller veins that eventually converge into larger veins, leading to the inferior vena cava.

Step 3: Learn the names and functions of the major veins involved. The common iliac veins are formed by the union of the external iliac veins (draining the lower limbs) and the internal iliac veins (draining the pelvis). These veins then merge to form the inferior vena cava.

Step 4: Eliminate the incorrect options based on their anatomical roles. Hepatic veins drain blood from the liver, renal veins drain blood from the kidneys, and subclavian veins drain blood from the upper limbs. None of these are involved in returning blood from the lower limbs.

Step 5: Conclude that the common iliac veins are responsible for returning blood from the lower limbs to the inferior vena cava, as they are anatomically connected to the lower limbs and pelvis.