ANATOMY

Detailed explanation-1: -From the windpipe, air moves into the lungs through tubes called bronchi. The bronchi lead to smaller tubes called bronchioles, which look like the branches of a tree.

Detailed explanation-2: -When you breathe in (inhale), air containing oxygen enters your windpipe, passes through the bronchi and eventually reaches the air sacs. These air sacs, called alveoli, are responsible for gas exchange. They look a bit like grapes at the end of the bronchial branches.

Detailed explanation-3: -The trachea divides into the two main BRONCHI (tubes), one for each lung. The bronchi, in turn, subdivide further into bronchioles. The RIGHT LUNG is divided into three LOBES, or sections.

Detailed explanation-4: -The trachea branches off into the right and left bronchi, which open into the right and left lungs respectively. Within the lung, each bronchus further divides into smaller bronchioles, that eventually open into the alveoli.

Detailed explanation-5: -The trachea serves to direct air into the two lungs. The trachea has a protective coating of special cells that helps defend against inhaled dust and particles. This airway is also surrounded by muscles and rings of cartilage.