Question

Place in order in which they act to impact respiration (ventilation)

Signals sent to respiratory center

Increased PCO2

Stimulation of chemoreceptors in medulla

Ventilation increases (increased depth and rate)

Decreased cerebrospinal fluid of pH

Increased PCO2 in cerebrospinal fluid

Action potential sent to diaphragm (and other muscle of inspiration)

Answer 1

Carbon dioxide Homeostasis by the chemoreceptor

Increased PCO2 ------> Increased PCO2 in cerebrospinal fluid ------> Decreased cerebrospinal fluid of pH -------> Stimulation of chemoreceptors in medulla --------> Signals sent to respiratory center -----------> Action potential sent to diaphragm (and other muscle of inspiration) ----------> Ventilation increases (increased depth and rate)

When the PCO2 increases , it will increases the concentration of the CO2 in the blood. carbon dioxide get transported in to the CSF . from there it will bind with the H20 to form H2CO3 . carbonic acid further split in to H+ and Hco3.

The increased concentrtaion of the H+ , decreases the pH of the CSF. it stimulate the chemoreceptors in the Medulla . when th echemoreceptor get stimulated it transmit signal to the respiratory center in the medulla and the pons(dorsal and ventral respiratory group in the medulla and apneustic center in the pons). it send action potential to the diaphragm and increases the rate and depth of the respiration.