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

Overview of Lymphoid Organs

Anatomy & Physiology

20. The Lymphatic System

Overview of Lymphoid Organs

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Multiple Choice

The lymphoid organ(s) located in the throat that defend(s) against invading bacteria coming in through the mouth and nose is/are __________.

Peyer's patches

the thymus

MALT

the tonsils

the spleen

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Verified step by step guidance

Begin by identifying the location of the lymphoid organs mentioned in the options. The throat is the key area of focus for this problem.

Understand the function of each lymphoid organ listed: Peyer's patches are located in the intestines, the thymus is located in the chest, MALT (Mucosa-associated lymphoid tissue) is a general term for lymphoid tissues associated with mucosal surfaces, the spleen is located in the abdomen, and the tonsils are located in the throat.

Recognize that the tonsils are strategically positioned in the throat to act as a first line of defense against pathogens entering through the mouth and nose.

Consider the anatomical and physiological role of the tonsils: they contain lymphocytes and other immune cells that help trap and destroy bacteria and viruses.

Conclude that the tonsils are the lymphoid organs located in the throat that defend against invading bacteria coming in through the mouth and nose.