Gas Exchnage In Mammals
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What is the primary function of the gaseous exchange system in mammals?
To get oxygen into the blood and remove carbon dioxide from the body.
What organs are involved in the gaseous exchange system in mammals?
Lungs.
What is the trachea commonly referred to as?
Windpipe.
What does the trachea split into?
Two bronchi.
What are the smaller tubes that branch off from the bronchi called?
Bronchioles.
What are the small air sacs at the end of bronchioles called?
Alveoli.
Why are there many alveoli in the lungs?
To provide a large surface area for diffusion.
Which muscles work together to move air in and out of the lungs?
Ribcage, intercostal muscles, and diaphragm.
Fill in the blank: The _______ is the main organ for gas exchange in mammals.
lungs
True or False: The bronchi lead directly into the alveoli.
False.
List the components of the gaseous exchange system in order from the trachea to the alveoli.
• Trachea • Bronchi • Bronchioles • Alveoli
Describe the structure in gaseous exchange system in mammals
• Air enters the trachea (windpipe) • trachea splits into two bronchi • each bronchi branches off into smaller tubes called bronchioles • the bronchioles end in small air sacs called alveoli
Where are gases exchanged in the lungs
Alveoli