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

2. Cell Chemistry & Cell Components

Introduction to Eukaryotic Organelles

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Introduction to Eukaryotic Organelles

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Multiple Choice

Which of the following are the smallest branches of the bronchial tree?

Primary bronchi

Bronchioles

Lobar bronchi

Alveolar sacs

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Verified step by step guidance

Understand the structure of the bronchial tree: The bronchial tree is a branching system of airways that starts with the trachea and divides into progressively smaller branches, facilitating the movement of air into the lungs.

Identify the hierarchy of the bronchial tree: The primary bronchi are the largest branches, followed by the lobar bronchi, segmental bronchi, and smaller branches like bronchioles and alveolar sacs.

Define bronchioles: Bronchioles are the smallest airways in the bronchial tree that lack cartilage and are responsible for directing air to the alveolar sacs, where gas exchange occurs.

Compare bronchioles to other options: Primary bronchi, lobar bronchi, and alveolar sacs are larger or serve different functions compared to bronchioles. Bronchioles are the smallest branches before reaching the alveolar sacs.

Conclude that bronchioles are the correct answer based on their size and position in the bronchial tree hierarchy.