Final answer:
Throat infections can reach the middle ear through the auditory tube, causing ear infections.
Step-by-step explanation:
Infections of the throat may be transmitted to the middle ear via the auditory tube, also known as the Eustachian tube. This tube connects the middle ear to the pharynx and helps equilibrate air pressure across the tympanic membrane. It is normally closed but opens during activities such as swallowing or yawning, which can, unfortunately, allow pathogens to travel from the throat to the middle ear, potentially causing an ear infection.