Question

Opening to the trachea is covered by a small flap of tissues is termed as

Answer 1

I definitely define
The opening to the trachea is a slitlike structure is called glottis .A thin flap of tissue is called epiglottis.it folds over the opening during swallowing and prevent food from entering the trachea.

Answer 2

Answer:

glottis

Explanation:

it is a slit like structure