Let's first take a closer look at the linguistic diversity that existed five hundred years ago. In 1500 there were probably about 7 thousand languages spoken across the earth, most still groupable into the 25 or so major families represented today.
Browse popular topics: Pharynx. The pharynx, or throat, is the passageway leading from the mouth and nose to the esophagus and larynx. The pharynx permits the passage of swallowed solids and liquids into the esophagus, or gullet, and conducts air to and from the trachea, or windpipe, during respiration.
Pharynx is a vertical tube lying behind the nasal and oral cavity. Its walls are built from striated (voluntary) muscles, covered by mucosal layer on its inner side. The part of the pharynx lying behind the nasal cavity is called the nasopharynx (Lat. nasus = nose).