Chapter 7 - IL / JA

Question 1

List the five functions of the respiratory system.

Answer 1

• Bring air from the atmosphere into the lungs
  -Transfer oxygen into the blood
  -Remove carbon dioxide from the blood
  -Expel heat and water vapour in the air breathed out
  -Allow the vocal cords to create speech air breathed out.

Question 2

Discuss how the diaphragm assists with breathing.

Answer 2

The diaphragm moves up and down allowing the chest cavity to either increase or decrease in size causing breathing (inspiration and expiration)

Question 3

Does cardiac output increase during exercise or stay the same?

Answer 3

Cardiac output increases from 5 L/min to 20-30 L/min during exercise at different increasing intensities.

Question 4

Outline the function of alveoli and where they can be found.

Answer 4

The alveoli are cup-shaped sacs at the ends of the smallest bronchioles. Each alveolus is only one cell thick and surrounded by capillaries that continually exchange oxygen for carbon dioxide and water.

Question 5

Define ventilation.

Answer 5

Ventilation (V) is the amount of air that is inspired and expired during one minute. It is calculated by multiplying tidal volume (TV) by respiratory rate (RR): V = TV × RR.

Question 6

What is produced as a result of oxygen production?

Answer 6

Carbon Dioxide

Question 8

Where does Carbon dioxide go?

Answer 8

it goes through the veins and heart back to the lungs where it is diffused into the alveoli and expired by the respiratory system.