Inside the neck

is what is termed the oesophagus (whose other
name is derived oesophagus from its length and narrowness), and the
windpipe. The windpipe is situated in front of the oesophagus in all
animals that have a windpipe, and all animals have one that are
furnished with lungs. The windpipe is made up of gristle, is sparingly
supplied with blood, and is streaked all round with numerous minute
veins; it is situated, in its upper part, near the mouth, below the
aperture formed by the nostrils into the mouth-an aperture through
which, when men, in drinking, inhale any of the liquid, this liquid
finds its way out through the nostrils.