GAS EXCHANGE

Question 0

Smooth Muscle Tissue

Answer 0

Can contract to construct the airway making the lumen narrower

Question 1

Cartilage

Answer 1

Has a structural role.

Holds the airways open to prevent them from collapsing under low air pressure.

Question 2

Elastic Fibres

Answer 2

Allows the airways to recoil back to their original size after the smooth muscle tissue has finished contracting.

Question 3

Squamous Epithelium

Answer 3

• Alveoli

* Lining Ti

Question 4

Tidal Volume

Answer 4

Volume of air taken into the lungs in one breath at rest.

Question 5

Vital Capacity

Answer 5

Volume of air taken into the lungs in one breath during exercise/deep breathing.

Question 6

Residual Volume

Answer 6

Volume of air left in lungs after fully breathing out - impossible to push out.

Question 7

Reserve Volume

Answer 7

The difference in volume between air breathed in at tidal volume and the vital capacity.

Question 8

Breathing Rate

Answer 8

Number of breaths taken every minute.

Question 9

Ventilation Rate

Answer 9

Total volume of air, breathed into lungs in one minute - calculated by
Breath volume x breathing rate