Oxygenation

Question 1

Oxygen measures approximately _____% in the earths atmosphere

Answer 1

21

Question 2

Each cell in the human body uses oxygen to__________.

Answer 2

Metabolize nutrients and produce energy

Question 3

Without oxygen ______.

Answer 3

Cell death occurs rapidly

Question 4

Expiration creates more chest space, causing the pressure within the lungs to fall below that in atmosphere.
TRUE or FALSE

Answer 4

False

Question 5

Ventilation

Answer 5

Movement of air in and out of lungs; facilitates respiration

Question 6

Respiration

Answer 6

Exchange of oxygen and carbon dioxide

Question 7

External respiration:

Answer 7

Takes place at most distal point in airway. It occurs between the alveolar-capillary membranes

Question 8

Internal respiration

Answer 8

Occurs