1. is yawning related to respiration?

Asked by vaishviolet23 | 18th Jun, 2015, 09:15: PM

Expert Answer:

Yes it is related to respiration. Due to low level ofoxygen in lungs, a reflex movement occurs in therespiratory system. It is basically due to imbalance of oxygen and carbondioxide. A yawn will cause a slow exhalation of oxygen after deeply breathing in the gas. This movement is thought to be controlled by the body’s nervous system.

Answered by Sivanand Patnaik | 19th Jun, 2015, 09:14: AM