What parts are in the respiratory system?

The respiratory system consists of the organs and structures used for breathing. It includes:

- The nose and mouth (the airways)

- The pharynx (throat)

- The larynx (voice box)

- The trachea (windpipe)

- The bronchi (large airways in the lungs)

- The bronchioles (small airways in the lungs)

- The alveoli (tiny air sacs in the lungs where gas exchange takes place)

- The lungs

- The diaphragm (a muscle that helps you breathe)

- Intercostal muscles (muscles between the ribs that help you breathe)