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

Which of the following correctly lists the structures of the bronchial tree in order from largest to smallest?

Primary bronchi, trachea, bronchioles, secondary bronchi

Trachea, primary bronchi, secondary bronchi, bronchioles

Bronchioles, secondary bronchi, trachea, primary bronchi

Secondary bronchi, trachea, primary bronchi, bronchioles

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Verified step by step guidance

Step 1: Begin by understanding the anatomy of the bronchial tree, which is part of the respiratory system. The bronchial tree is a branching system of airways that starts at the trachea and progressively divides into smaller structures to facilitate air movement into the lungs.

Step 2: Identify the largest structure in the bronchial tree. The trachea is the largest airway and serves as the main passage for air entering the lungs. It is located above the bronchi and branches into the primary bronchi.

Step 3: Next, recognize the primary bronchi. These are the first branches of the trachea and are slightly smaller than the trachea. They direct air into each lung (right and left primary bronchi).

Step 4: After the primary bronchi, the secondary bronchi come next. These are smaller branches that further divide within each lung, directing air to specific lobes of the lungs.

Step 5: Finally, the bronchioles are the smallest structures in the bronchial tree. They are tiny airways that branch off from the secondary bronchi and lead to the alveoli, where gas exchange occurs.