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

How many lymphatic ducts are present in the human lymphatic system?

Three

One

Four

Two

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Verified step by step guidance

Step 1: Begin by understanding the structure and function of the human lymphatic system. The lymphatic system is responsible for maintaining fluid balance, immune defense, and transporting lymph, a fluid containing white blood cells.

Step 2: Learn about the major components of the lymphatic system, including lymph nodes, lymph vessels, and lymphatic ducts. Lymphatic ducts are the final pathways for lymph to return to the bloodstream.

Step 3: Identify the two main lymphatic ducts in the human body: the thoracic duct and the right lymphatic duct. The thoracic duct drains lymph from the majority of the body, while the right lymphatic duct drains lymph from the upper right quadrant of the body.

Step 4: Understand the anatomical locations and drainage areas of these ducts. The thoracic duct empties into the left subclavian vein, and the right lymphatic duct empties into the right subclavian vein.

Step 5: Confirm that there are only two lymphatic ducts in the human lymphatic system, as no other ducts are responsible for returning lymph to the bloodstream.