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

What is Anatomy & Physiology?

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

What is Anatomy & Physiology?

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Multiple Choice

What is the epiglottis and what is its primary function in the respiratory system?

A tube that connects the larynx to the bronchi, allowing air passage to the lungs.

A muscle that contracts to expand the lungs during inhalation.

A structure that filters dust and particles from the air before it enters the lungs.

A flap of cartilage that covers the trachea during swallowing to prevent food from entering the airway.

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Verified step by step guidance

Begin by identifying the anatomical location and structure of the epiglottis. The epiglottis is a flap of elastic cartilage located at the root of the tongue, above the larynx.

Understand the primary function of the epiglottis in the respiratory system. Its main role is to act as a switch between the trachea and the esophagus to ensure that food and liquid do not enter the airway during swallowing.

During swallowing, the epiglottis folds back to cover the entrance of the trachea, directing food and liquid to the esophagus. This prevents aspiration, which is the entry of food or liquid into the respiratory tract.

Recognize the importance of the epiglottis in maintaining respiratory health. By preventing food and liquid from entering the airway, it helps avoid choking and respiratory infections.

Consider the implications of epiglottis dysfunction, which can lead to conditions such as aspiration pneumonia if food or liquid enters the lungs. Understanding its function helps in diagnosing and treating related disorders.