Which Structure is Called the Windpipe and is Supported by Rings

Question

Which structure is called the windpipe and is supported by rings of cartilage?
A) Bronchus
B) Alveolus
C) Pharynx
D) Trachea

Accepted Answer

The trachea is called the windpipe and is supported by 16-20 rings of cartilage to keep it from collapsing. The bronchus is a branch of the trachea that leads to the lungs. The alveolus is a small air sac in the lungs where gas exchange occurs. The pharynx is a passage connecting the nose and mouth to the esophagus and trachea.