The upper opening of the windpipe is guarded by the ...............
Glottis
Bronchi
Epiglottis
Lungs
The epiglottis is a muscular flap at the beginning of the windpipe. It snaps shut during swallowing to cover the opening of the windpipe.
The upper opening of the windpipe is guarded by a muscular flap called
The front opening of the windpipe is guarded by ___________.
Epiglottis guards the opening of