respiratory system
Air enters the nostrils
upper respiratory system diagram unlabeled
From the nostrils it passes through thenasopharynx, theoral pharynx through the glottis.
respiratory system for kids
Then into the trachea into the right and left bronchi.
respiratory system diagram for kids worksheet
From the bronchi it branches and rebranches into bronchioles, each of which terminates in a cluster of alveoli where real exchange takes place.
respiratory system labeled
These defines how inspiration and expiration takes place in the human respiratory system according to biology professors.
