AP BIOLOGY

Detailed explanation-1: -In your lungs, the main airways (bronchi) branch off into smaller and smaller passageways-the smallest, called bronchioles, lead to tiny air sacs (alveoli).

Detailed explanation-2: -Primary (first) bronchi are the left and right main bronchi in the upper portion of your lungs. Secondary bronchi near the middle of your lungs, also called lobar bronchi. Tertiary (third) bronchi at the edge of your lungs (also called segmental bronchi), just before the bronchioles.

Detailed explanation-3: -A bronchus (plural bronchi, adjective bronchial) is a passage of airway in the respiratory tract that conducts air into the lungs. The bronchus branches into smaller tubes called bronchioles.

Detailed explanation-4: -(BRONG-kee-ole) A tiny branch of air tubes in the lungs.

Detailed explanation-5: -Bronchi are the main airways into the lungs. Bronchi is the plural form of bronchus. Air enters your body through your mouth or nose and it passes through the larynx and trachea. The trachea, also called the windpipe, branches into a bronchus in each lung.