Respiratory System Flashcards
What is the Respiratory system?
The parts of the respiratory system controls breathing rate via the intake of oxygen and exit of carbon dioxide.
What is the trachea?
A passageway of inspired air and expired air into and out of the lungs.
What is the Alveoli?
Small sacs at the end of the broncioles that allow for the exchange of carbon dioxide and oxygen.
Bronchi?
Two large tubular structures that carry air from the trachea to the lungs.
What is the Epiglottis?
Flap at the back of the throat that prevents food from entering the trachea to ensure only air gets into the trachea.
What are Bronchioles?
Smaller airways in the lungs that form when the bronchi further divides. They carry the air to the alveoli.
Nasal Cavity
Primary entrance for air to enter the respiratory system, where the air is filtered and warmed before the air is transportated to the lungs.
What is the Pharynx?
Also known as the throat, it allows air to pass into the lungs and the larynx, and food and liquids to pass into the esophagus.
What is the larynx?
Voice box and the opening of the trachea.
Respiratory System Sequence
- Air enters the mouth and nasal cavity where it is warmed and filtered.
- Pharynx
- Epiglotus separates food and air into the esophagus or trachea, respectively.
- The larynx opens to the trachea. This is also the voice box.
- The trachea is the passage that allows air to travel to the lungs.
- Broncus, branches the trachea off the left and right lung
- Bronchioles
- Alveoli, the site of gas exchange
Systems of Interactions
How does the respiratory system interact with the circulatory system.
When red blood cells move into the lungs via the pulmonary arteries, they take in the oxygen, carrying it to the rest of the body, later on. They also remove carbon dioxide from the body.
Hemoglobin
The protein inside RBCs that carries oxygen.
How does gas exchange work?
The process where oxygen travels across the alveoli into the red blood cells, and carbon dioxide from the RBCs to the alveoli. This is done because capillaries in the lung are wrap around the alveoli.
Exhalation?
The process where the ribs move in and down, voume decreases, pressure increases, and the air moves out.
Inhalation
The process where the ribs move up and out, volume increases (sucking the air in), pressure in the lungs decrease, and air enters the lung to equalize the pressure.