Respiratory system Flashcards
what is the respiratory system for ?
The part where oxygen is absorbed by the body so the organs can work
what are the respiratory system organs ?
Nasal cavity Pharynx Larynx Bronchioles trachea Lungs Alveoli Diaphragm Nostrils Bronchus
what is the function of the nostrils ?
Contains small hair that catches all the dust particles
what is the function of the nasal cavity ?
filters and warm the air, and make it moist before it goes into the lungs.
what is the function of the larynx in the respiratory system ?
lets air pass from your pharynx to your trachea
what is the function of the bronchioles ?
carry air to small sacs called alveoli.
what is the function of the trachea ?
carry air in and out of both of your lungs and connects trachea and bronchus .
what is the function of the lungs ?
contains alveoli so the process of gas exchange called respiration occurs there
what is the function of the bronchus ?
carry air to and from both of your lungs and has branching airways
what is the function of the alveoli ?
where the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in and out
what is the function of the diaphragm ?
pulls air into the lungs
what happens to the diaphragm when you inhale ?
pulls downward
what happens to the lungs when you inhale ?
becomes bigger and expands
what happens to your lungs when you exhale ?
becomes the original size
what happens when you exhale ?
the diaphragm relaxes and goes upwards
