The respiratory system Flashcards
Why is oxygen needed?
to get energy from food
What happens to the air when we breath through our nose?
its filtered, warmed, and moistened
What is the larynx? and where is it located?
the voice box and located at the bottom of the pharynx
What is in the larynx?
the vocal cords
Where is the trachea located?
at the bottom of the larynx
What prevents food from entering the trachea?
the epiglottis
What do bronchi do?
they carry air to each lung
What does the trachea divide into?
Bronchial tubes, (bronchi)
The bronchi divide in to smaller branches that contain what?
alveoli
What are capillaries?
tiny blood vessels
Where does gas exchange occur?
in the alveoli
What’s a diaphragm?
a muscle found under the rib cage
When you inhale what happens to the diaphragm?
it contracts/flattens
When you exhale what happens to the diaphragm?
it relaxes / goes up
The respiratory consists of what 6 things?
1- nose 2- pharynx 3- larynx 4- trachea 5- bronchial tubes 6-lungs