| A | B |
|---|
| functions of system | a. removes gaseous wastes b. supplies body with oxygen |
| breathing | process tht moves fresh air into the lungs and waste gas out |
| respiration | a chemical reaction that releases energy from glucose in body cells |
| location for the process of respiration | mitochondria in body cells |
| respriatory system overall process | breathing-circulation-respiration-circulation-breathing |
| how does air get into the body | nasal cavity & mouth |
| why is it better to intake air through the nasal cavity | warms & cleans the air |
| why do we have mucus in the nasal cavity | to trap the dust |
| larynx | common name - voice box |
| vocal cords | located in larynx - muscles tighten or loosen the vocal cords when speaking |
| trachea | common name - windpipe |
| construction of trachea | C-rings of cartilage keep it open & provide support |
| bronchi | at end of trachea - lead to bronchioles |
| bronchioles | smaller air tubes that branch off the bronchi & lead to the alveoli |
| alveoli | gas exchange happens here - clusters of thin-walled sacs |
| lungs | where inhalation & exhalation happens, contains the bronchioles & alveoli |
| diaphram | muscles under the lungs, gets air into & out of the body |
| emphysema | difficulty breathing, blood low in oxygen |
| chronic bronchitis | disease where there is too much mucus in the bronchial tubes, difficulty breathing |
| asthma | lung disorder associated with allergies |
| epiglottis | flap that covers the trachea so food does not enter |
| capillaries | 1 cell thick for gas exchange on the outside of alveoli |
