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 Heart2h 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

20. The Lymphatic System

Lymphatic Vasculature

Anatomy & Physiology

20. The Lymphatic System

Lymphatic Vasculature

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Multiple Choice

Which statement is true of the thoracic duct?

It forms from the merging of collecting vessels from the left upper limb and neck.

It forms from the merging of collecting vessels on the right side of the body.

It drains the lymph from the right head, neck, shoulder, arm, and upper right chest.

It drains lymph only from the arms.

It drains the lymph from the entire left side of the body and the right abdomen and leg.

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Verified step by step guidance

Understand the function of the thoracic duct in the lymphatic system. It is the largest lymphatic vessel in the body and plays a crucial role in draining lymph.

Recognize the areas of the body from which the thoracic duct collects lymph. It primarily drains lymph from the left side of the body, including the left arm, left side of the head and neck, and the left thorax.

Note that the thoracic duct also collects lymph from the right side of the body below the diaphragm, which includes the right abdomen and right leg.

Differentiate the thoracic duct from the right lymphatic duct, which drains lymph from the right upper quadrant of the body, including the right arm, right side of the head and neck, and right thorax.

Conclude that the correct statement about the thoracic duct is that it drains lymph from the entire left side of the body and the right abdomen and leg, as it collects lymph from these regions before emptying into the venous circulation at the junction of the left subclavian and internal jugular veins.