Question

Match the column:

Column I	Column II
(a) Larynx	(p) Lid of larynx
(b) Trachea	(q) Air sacs
(c) Alveoli	(r) Voice box
(d) Epiglottis	(s) Wind pipe
	(t) Common passage

Answer 1

The larynx is another name for the voice box. It's a tube about 2 inches long in adults. It sits above the windpipe in the neck and in front of the food pipe. The trachea, also called as the windpipe, is a cartilaginous tube that connects the pharynx and larynx to the lungs, allowing the passage of air, and so is present in almost all air-breathing animals with lungs. Alveoli are the air sacs present inside the lungs, these are the site of exchange of gases. The epiglottis is a flap in the throat that keeps food from entering the windpipe and the lungs. The flap is made of elastic cartilage covered with a mucous membrane, attached to the entrance of the larynx.

So the correct option is ' a-r, b-s, c-q, d-p '.