FRANCIS LEROY, BIOCOSMOS / SCIENCE PHOTO LIBRARY FRANCIS LEROY, BIOCOSMOS / SCIENCE PHOTO LIBRARY
Upper respiratory tract. Artwork showing a section through the human upper respiratory tract. The nasal cavity (upper brown area) meets the oral cavity (central brown area) at the throat to form the pharynx. Below the pharynx are the trachea (windpipe, bottom right) and the oesophagus (bottom left). At the start of the trachea is the larynx (voice box), which contains the vocal cords.
Model release not required. Property release not required.