Vocabulary
What is the part of the respiratory system that moves air in and out by changing chest cavity size?
Diaphragm
What is the part of the respiratory system that shares a passage way for air, food, and liquids.
What is the most important function of the respiratory system?
Gas Exchange
When the diaphragm _________, it moves upward and air flows out.
Relaxes
Only two lobes, because it must make room for the heart.
The part of the respiratory system that contains vocal cords and helps protect the airway.
Larynx
What is the part of the respiratory system that filters, warms, and moistens air as it enters the body.
The Nose
What is the important function that occurs due to your larynx?
Produces Vocal Sounds
The respiratory system allows the body to intake _____ and remove ____________ ?
Oxygen and Carbon Dioxide
What is the reason we need oxygen in our body and what is the form we use it in?
What is the rigid tube supported by cartilage rings, we call the main air highway to the lungs.
Trachea
What is the part of the respiratory system that splits to direct air into each lung?
Bronchi
During inhalation, the diaphragm moves ______, the chest cavity gets ________.
Downward and Larger
Name three different things that cilia can trap before it reaches the rest of the respiratory system?
Dust, Pollen, germs (virus), chemicals, smoke particles, pet dander, ....
What is the role of Cilia is the respiratory system?
They are tiny hair-like structures that trap and move debris out of airways.
What is the role of Alveoli in the respiratory system?
They are the sites of gas exchange between air and blood.
What is the function of the respiratory system that involves that balancing of H+ (hydrogen) ions and keeps the blood from getting too acidic or basic?
Regualting Blood PH
During exhalation, the diaphragm moves ________, and the chest cavity gets _______.
Upward and smaller
When the Diaphragm _________, it moves downward and air flows in
Contracts
What is the role of the bronchioles in the respiratory system?
They distribute air to the alveoli and contain smooth muscle that can constrict or relax.
What is the role of the epiglottis in the respiratory system?
It closes over the larynx during swallowing to prevent food from entering the airway.
What is the correct order of the respiratory system structures that air passes through (from outside the body)?
Nose → Pharynx → Larynx → Trachea → Bronchi → Bronchioles → Alveoli
What is the reason diffusion drives gas exchange in the alveoli?
- Diffusion is the movement of particles from high concentration to low concentration.
- CO2 from blood into alveoli / O2 from Alveoli into the blood
Oxygen moves from the ____ into the ___________.
Carbon dioxide moves from the _______ into the ______.
CO2 --> bloodstream into alveoli