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

22. The Respiratory System

Introduction to Lung Physiology

Anatomy & Physiology

22. The Respiratory System

Introduction to Lung Physiology

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which is true about the pulmonary circuit as compared to the systemic circuit?

The pulmonary circuit has a higher resistance than the systemic circuit.

The pulmonary circuit involves the left side of the heart.

The pulmonary circuit has lower blood pressure than the systemic circuit.

The pulmonary circuit carries oxygenated blood to the body.

Previous problemNext problem

Verified step by step guidance

Understand the basic function of the pulmonary circuit: it carries deoxygenated blood from the right side of the heart to the lungs and returns oxygenated blood to the left side of the heart.

Recognize the basic function of the systemic circuit: it carries oxygenated blood from the left side of the heart to the rest of the body and returns deoxygenated blood to the right side of the heart.

Compare the resistance in both circuits: the pulmonary circuit has lower resistance because it only needs to pump blood to the lungs, which are close to the heart, whereas the systemic circuit pumps blood throughout the entire body.

Compare the blood pressure in both circuits: the pulmonary circuit has lower blood pressure because it operates over a shorter distance and with less resistance compared to the systemic circuit.

Identify the correct statement: the pulmonary circuit has lower blood pressure than the systemic circuit, which aligns with the physiological characteristics of these circuits.