Question

which protects entry of food into trachea​

Answer 1

Answer:

epiglottis - large , leaf-shaped piece of cartilage lying on top of larynx; during swallowing the larynx elevates, causing the epiglottis to fall on the glottis (opening into larynx) like a lid, closing it off - this prevents food from entering the windpipe (trachea).