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

17. The Blood

Introduction To Blood

Anatomy & Physiology

17. The Blood

Introduction To Blood

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

How does the circulatory system support a bird's ability to fly?

By reducing the heart rate during flight

By increasing the size of the air sacs

By providing oxygen-rich blood to the flight muscles

By storing excess carbon dioxide in the lungs

Previous problemNext problem

Verified step by step guidance

Understand the role of the circulatory system in birds: The circulatory system is responsible for transporting oxygen, nutrients, and waste products throughout the body. In birds, it plays a crucial role in supporting high-energy activities like flight.

Identify the key components involved: The heart pumps oxygen-rich blood through arteries to various parts of the body, including the flight muscles. These muscles require a continuous supply of oxygen to sustain the energy demands of flying.

Consider the physiological adaptations in birds: Birds have a highly efficient circulatory system with a strong heart and a high metabolic rate, which ensures that oxygen is rapidly delivered to the muscles during flight.

Evaluate the importance of oxygen delivery: During flight, the demand for oxygen increases significantly. The circulatory system must provide a steady supply of oxygen-rich blood to the flight muscles to maintain their function and endurance.

Conclude with the correct mechanism: The circulatory system supports a bird's ability to fly by providing oxygen-rich blood to the flight muscles, enabling sustained energy production and muscle activity necessary for flight.