5 Questions
What is the name of the microscopic air sacs where gas exchange occurs in mammals and reptiles?
Alveoli
In which part of the body do the largest airways, such as the trachea, branch into the two main bronchi?
Middle of the chest
What is the main function of the respiratory system in animals and plants?
Gas exchange
What do the microscopic air sacs have a very rich supply of, allowing them to bring air into close contact with the blood?
Blood
What do land animals internalize as linings of the lungs for gas exchange?
Respiratory surface
Study Notes
Respiratory System
- The microscopic air sacs in mammals and reptiles where gas exchange occurs are called alveoli.
- The trachea branches into the two main bronchi in the thoracic cavity.
- The main function of the respiratory system in animals and plants is to facilitate gas exchange, allowing for the exchange of oxygen and carbon dioxide.
Alveoli
- Alveoli have a rich supply of capillaries, allowing them to bring air into close contact with the blood for efficient gas exchange.
- In land animals, the internalized linings of the lungs, called alveoli, are responsible for gas exchange.
Test your knowledge of the respiratory system with this quiz. Explore the anatomy, physiology, and functions of the organs involved in gas exchange. Learn about the respiratory surfaces in different organisms and their adaptations.
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