Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 39m
3. Energy & Cell Processes10h 8m
4. Tissues & Histology10h 3m
5. Integumentary System2h 28m
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 System3h 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

Secondary Lymphoid Organs: MALT

Anatomy & Physiology

20. The Lymphatic System

Secondary Lympoid Organs: MALT

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Multiple Choice

Which pair of tonsils trap pathogens at the posterior end of the oral cavity?

Palatine tonsils.

Pharyngeal tonsils.

Lingual tonsils.

All 3 pairs of tonsils.

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Verified step by step guidance

Understand the location and function of each type of tonsil: Palatine, Pharyngeal, and Lingual.

Palatine tonsils are located on either side of the oral cavity at the back of the throat. They are the most commonly known tonsils and are often the ones removed during a tonsillectomy.

Pharyngeal tonsils, also known as adenoids, are located in the roof of the nasopharynx, which is the upper part of the throat behind the nose.

Lingual tonsils are located at the base of the tongue and are less commonly discussed compared to the other two types.

Identify which tonsils are positioned to trap pathogens entering through the oral cavity. The palatine tonsils are strategically located at the posterior end of the oral cavity, making them the primary pair responsible for trapping pathogens in this area.