Which connects the inner ear to the back of the nose?

• A. Eustachian tube
• B. inner ear
• C. cochlea
• D. Alzheimer's Disease

Answer: (A)

The channel that links the ear to the back of the nose serves to equalize air pressure and drain secretions from the middle ear into the throat region behind the nasal passages. That channel is the Eustachian tube, also called the pharyngotympanic tube, which connects the middle ear to the nasopharynx. It helps balance pressure on both sides of the eardrum so sounds can be heard clearly and allows mucus and fluids to drain away, usually opening briefly when you swallow or yawn. The inner ear and its components (like the cochlea) are not directly connected to the back of the nose, and Alzheimer’s disease is unrelated to ear anatomy.