ANSWERS WITH COMPLETE VERIFIED 2024/2025
Ventilation
movement of air within the lungs
Inspiration
air enters lungs
Exhalation or Expiration
air exits lungs
Respiration
diffusion of gasses across cellular membranes
External Respiration
occurs at alveolar level
Internal Respiration
occurs in all cells of body
Air initially moves into the
upper airways from the nares of the mouth into pharynx to the larynx to the trachea to
the mainstem bronchi and then continues to branch out
Upper Airways
nares
sinuses
, pharynx
---oropharynx
---nasopharynx
---laryngopharynx
epiglottis
The epiglottis is the
cartilaginous flap attached to the tip of the larynx
The epiglottis helps
food and air go where their need to go
Cilia help
capture and move particles away from the lungs because you want to avoid the stuff
getting down into the lungs and causing infection
Most of the passageway from the nasal cavity all the way down to the bronchi are
lined with cells called
ciliated pseudo stratified columnar epithelium
As you move through the bronchioles and the alveoli, the type of cells in the
inner lining
change because the needs change at those different parts of the lungs
When there is an introduction of harmful particles (bacteria, viruses,
microorganisms), the mucous membranes tend to
have a reaction