controlling ventilation rate

Question 1

what is ventilation rate controlled by

Answer 1

the ventilation centre in the medulla oblongata

Question 2

what are the functions of central chemoreceptors

Answer 2

chemoreceptors dtect changes in blood pH levels
when Carbon Dioxide is prodiced during respiration, it is acidic
the cemoreceptors detect this increased acidity and signal to increase ventilation rate

Question 3

what are the peripheral chemoreceptors

Answer 3

they are located in the arteries
they detect changes in the chemical composition in the blood and signal accordingly to slow down or speed up ventilation rate

Question 4

what does an increased ventilation rate do to oxygen delivery

Answer 4

it increases the rate at which oxygen is delivered to respiring tissues and the removal of waste products
this is important during exercise due to the fact that tissues will be respiring quicker