Question

at high alitude, people experience Chey e-Stokes respiration. initially respiration increases due to the low concentration of oxygen but then respiration stops because of the ___, This is then alteration of deep breathing and apnea.

Answer 1

Respiration stops because of the decreased or very low concentration of CO2 which cause apnea.

Explanation-

Cheyne stroke breathing is a pattern of breathing which a person experience in high altitude. In this type of breathing, firstly respiratory rate is higher because oxygen tension is low . The CO2 accumulates in the body at high altitude because of less oxygen. To remove this CO2 , the compensatory hyperventilation occurs. Due to this hyperventilation, the excessive CO2 is removed. After some time, the CO2 level falls drastically due to hyperventilation. This fall in CO2 is sensed by the respiratory centres and these stops respiration.

This is the reason there is apnea or stoppage of respiration during cheyne stroke breathing.