Pronunciation: [ɡˈʌtəɹə͡l dˈʌkt] (IPA) 
The guttural duct is a passage in the body that connects the nasopharynx to the middle ear. The spelling of this word is influenced by its pronunciation, which is /ˈɡʌtərəl dʌkt/. The "guttural" part is pronounced with a hard "g" sound followed by a "u" sound as in "but." The "duct" part is pronounced with a short "u" sound as in "cup" followed by a "t" sound. Overall, the word sounds like "gut-ter-ul ducked."
A guttural duct is a term used in anatomy to describe a small passage or canal that connects the inner ear to the back of the throat. It is a thin, membranous tube that functions as a conduit between the middle ear and the nasopharynx. The guttural duct is responsible for equalizing pressure in the middle ear, allowing the eardrum to vibrate properly and enabling the transmission and reception of sound.
Located near the eustachian tube, the guttural duct serves an important function in maintaining equilibrium within the ear. By opening and closing, it helps regulate the air pressure on both sides of the eardrum, ensuring that it remains flexible and responsive to sound waves. When there is a change in altitude or pressure, such as during air travel or underwater diving, the guttural duct is responsible for adjusting the air pressure in the middle ear to prevent discomfort or damage.
The term "guttural" refers to the fact that the duct is positioned at the back of the throat, in the region commonly known as the guttural pouch. In some animals, such as horses, the guttural duct is particularly large and plays a role in their unique vocalizations. Overall, the guttural duct is a vital anatomical feature that helps maintain the health and functionality of the ear, ensuring optimal hearing abilities.
Eustachian tube, tuba auditiva.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "guttural" comes from the Latin word "guttur", which means throat or gullet. The word "duct" comes from the Latin word "ductus", which means passage or conduit. Therefore, the term "guttural duct" refers to a passage or conduit related to the throat or gullet.
