The Contol Of Respiration

- Breathing happens automatically and is under the influence of the Respiratory Control Centre (RCC). this is located in the Medulla ( in the brain).

- this control centee has 2 areas, ( both areas happen with out us knowing) therefore they are under Involuntary Nervous Control :

* the INSPIRATORY CONTROL CENTRE (ICC)
* the EXPIRATORY CONTROL CENTRE (ECC)

there are several factors that affect the (RCC) the main ones are:

a LOW BLOOD pH (increase in acidity)

CHEMORECEPTORS

MECHANORECEPTORS & PROPRIOCEPTORS

STRETCH RECEPTORS

THERMORECEPTORS

After training aerobically for a long period this will create an improvement in LUNG FUNCTION. this is due to several factors including :

- small increases in lung volumes and capacites

- improved transport of respiratory gases, oxygen and carbon dioxide

- more efficient gaseous exchange at the alveoli and tissues

- improved uptake of oxygen by the muscles.