respiratory system Flashcards
1
Q
respiration
A
the process by which blood cells absorb oxygen and eliminate carbon dioxide and water vapor.
2
Q
nasal cavity
A
filters, moistens, and warms air
3
Q
pharynx
A
filters and aids in protection against infection.
4
Q
epiglottis
A
closes when swallowing to prevent food from going down the airway and into the trachea.
5
Q
trachea
A
further cleanses the air. the trachea branches into the left and right bronchi.
6
Q
bronchioles
A
bronchi that is further sub divided into smaller tubes
7
Q
alveolus
A
when each bronchial tube ends in a smaller sac
8
Q
capillaries
A
when oxygen from the air enter the bloodstream via tiny blood vessels, which are called capillaries.
9
Q
diaphragm
A
a system of muscles that allows breathing
