4

Question 1

Boyle’s law

Answer 1

Pressure is inversely related to volume

Question 2

Purposes of respiratory system

Answer 2

Exchange of gases - occurs through ventilation and diffusion

Maintenance of acid/base balance

Question 3

Two forms of respiration

Answer 3

Pulmonary respiration - ventilation and O2/CO2 exchange

Cellular respiration - O2 used CO2 produced

Question 4

Muscles of ventilation during exercise

Answer 4

Expiration - internal intercostal muscles

Inspiration - scalenes and external intercostal muscles

Question 5

Minute ventilation

Answer 5

Amount of air moved in or out of the lungs per minute.

V = (frequency)(tidal volume)

Question 6

Spirometry

Answer 6

Measurement of pulmonary volumes and rate of expired airflow

Question 7

Airflow =

Answer 7

Difference in pressure of airway/resistance

Question 8

Ventilatory threshold

Answer 8

Point at which ventilation starts to increase at a faster rate than VO2. About the same as lactate threshold.