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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

22. The Respiratory System

Introduction to Lung Physiology

Anatomy & Physiology

22. The Respiratory System

Introduction to Lung Physiology

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Multiple Choice

Which of the following statements about bird respiration is true?

Birds have a unidirectional airflow through their lungs.

Birds rely solely on their trachea for respiration.

Birds use a diaphragm to assist in breathing.

Birds have alveoli similar to mammals for gas exchange.

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Verified step by step guidance

Understand the unique respiratory system of birds, which is different from mammals. Birds have a highly efficient system that allows for unidirectional airflow through their lungs.

Recognize that birds do not rely solely on their trachea for respiration. Instead, they have a complex system involving air sacs that facilitate continuous airflow.

Note that birds do not use a diaphragm to assist in breathing. Instead, they use a system of air sacs and muscles to move air through their respiratory system.

Understand that birds do not have alveoli like mammals. Instead, they have parabronchi, which are tiny tubes that allow for gas exchange in a unidirectional manner.

Conclude that the statement 'Birds have a unidirectional airflow through their lungs' is true, as it accurately describes the unique and efficient respiratory system of birds.