coordinated efforts of the nervous system, extrinsic stabilizing muscles, and intrinsic coordinated muscle contractions.
athing involves two main activities: inspiration and expiration. Inspiration is an active process that re
Once the lungs have reached their desired inspiratory goal, the lungs passively recoil to exhale. Lung tissue contains a
great deal of smooth muscle and elastic fibers to allow this recoil to its original state.
1. Trace a molecule of oxygen from the external environment, through the conductive zone, down to the
alveoli. Identify the changing epithelial tissue as you trace through the tract. You may want the aid of
Respiratory Region
ex: Vestibule
Epithelia Type
ex: Stratified Squamous Epithelia