Final answer:
The adventitious sound produced by air passing through narrowed bronchioles is characterized as wheezes, a high-pitched whistling sound commonly associated with breathing conditions like asthma.
Step-by-step explanation:
Air passing through narrowed bronchioles would produce wheezes. This adventitious sound is typically associated with conditions that cause narrowing of the bronchioles, such as asthma or Chronic Obstructive Pulmonary Disease (COPD). Wheezing is a high-pitched whistling sound made while breathing, and it's most noticeable when exhaling, but can sometimes be heard when inhaling as well. Other sounds such as bronchial sounds, bronchophony, and whispered pectoriloquy are different types of lung sounds and are not specifically associated with narrowed bronchioles.