Eustachian tube
Tuba auditiva · Sluchová (Eustachova) trubice
Respiratory system
Looks like
A narrow tube about 3.5 cm long from the middle ear to the back of the nose.
What it does
Equalises middle-ear pressure and drains its secretions.
Keeping it well
Swallowing or yawning opens it on flights; blocked tubes in children cause glue ear and hearing loss that can delay speech.