Regulation of Breathing and Cough

Question 1

What are the two central respiratory centres in the medulla?

Answer 1

Dorsal respiratory group of neurones

Ventral respiratory groups of neurones

Question 2

The diaphragm is controlled by which nerve?

Answer 2

Phrenic nerve

Question 3

What are the reagents and products of Carbonic Anhydrase?

Answer 3

CO2 = reagent

Carbonic acid = product

Question 4

Normal breathing is also known as…?

Answer 4

Tidal breathing

Question 5

Define “Tidal Volume”

Answer 5

Tidal volume is the lung volume representing the normal volume of air displaced between normal inhalation and exhalation

Question 6

Define “Residual Volume” (RV)

Answer 6

Residual volume is the amount of air that remains in a person’s lungs after fully exhaling

Question 7

Define “Forced Expiratory Volume” (FEV)

Answer 7

Forced expiratory volume measures how much air a person can exhale during a forced breath. Can be measured during the first (FEV1), second (FEV2), and/or third seconds (FEV3) of the forced breath

Question 8

Define “Forced Vital Capacity” (FVC)

Answer 8

Forced vital capacity is the total amount of air exhaled during the FEV test (FEV1 + FEV2 + FEV3)

Question 9

What is the class of receptors which measure heat and pain?

Answer 9

TRP (Transient Receptor Potental) family