Respiratory System

Question 1

Respiratory system does what?

Answer 1

provides for air exchange & supplies tissues with oxygenated blood

Question 2

lungs

Answer 2

breathes in O2 and exhales CO2

Question 3

process of air exchange

Answer 3

air inhaled through nose & trachea > passes into R & L bronchial tubes (where cilia keep airway clear) > air travels to alveoli (O2 & CO2 exchanged) > O2 transported to RBCs into bloodstream

Question 4

How does the body work to process air exchange?

Answer 4

diaphragm contracts to pull air into lungs upon inspiration when the diaphragm relaxes CO2 is forced outside of body through expiration

Question 5

how does pulmonary function decrease?

Answer 5

• age
• smoking
• exposure to pollutants & irritating chemicals

Question 6

how do we maintain pulmonary function?

Answer 6

(normal aging process is unavoidable)

• exercising & keeping active
• avoid smoking, pollutants & chemical exposures

Question 7

what are cilia, where are they located?

Answer 7

cilia are tiny hairs in the bronchial tubes that keep airway clear by removing unwanted matter from the lungs

Question 8

what are alveoli?

Answer 8

tiny air sacs surrounded by capillaries