Why might you purposely yawn when you descend to land while flying in an airplane? What will be ...

Answer to q. 1

Eustachian tubes protect the tympanic membrane (eardrum) from damage by changes in environmental
atmospheric pressure. The pressure changes associated with flying can be relieved by yawning or
swallowing because the tube opens. The tube opening allows air to flow into or out of the middle ear,
resulting in equalization of pressure on both sides of the eardrum.

Answer to q. 2

Proprioceptors allow the central nervous system to monitor the bodys position and help keep the body
in balance. They are slow to adapt, so that body position and balance are constantly monitored. Your
body can detect and adjust to changes in weight on the body so that it stays in balance, that is
proprioceptors allow your body to compensate unconsciously.

I'm still confused, but thanks for answering correctly