Answer to Question #323469 in Human Anatomy and Physiology for saleh Mubark

Question

1. Increase of carbon dioxide concentration in inspired air，how does respiratory movement change? Why?

2. Cut the vagus nerve two sides， how does respiratory movement change? Why?

Answer 1

high concentration of carbon dioxide leads to increase in the rate and depth of respiration in order to facilitate the expulsion of carbon dioxide bringing more air in and out of the lungs hence lowering blood levels of carbon dioxide.

cutting the vagus nerve into two slides has no extra ordinary effect on the ventilation of the lungs. lungs respond to unilateral vagotomy by deepening and slowing of respiratory movement