Respiration part 1 Flashcards
4 main purposes of ventilation?
O2 into body
CO2 out
maintain pH balance
oral communication
what 2 purposes of ventilation are ESSENTIAL for the bioenergetic process?
exchange of O2 into the body and exchange of CO2 out of the body
how do O2 and CO2 move
from high concentration (pressure) to low concentration (pressure)
external respiration
lungs to blood
internal respiration
blood to cells
cellular respiration
cells to energy
pulmonary respiration
air to lungs
air flow through respiratory system organs (order)
external nares pharynx larynx epiglottis trachea primary bronchi secondary bronchi tertiary bronchioles lungs
bronchiole
small branches of the bronchi that carries air to and from the alveoli
terminal bronchiole
smallest bronchiole in the conducting zone (end of the conductive zone)
conductive zone location
nose to terminal bronchioles
another name for conductive zone
anatomical dead space
what is anatomical dead space
the conductive zone where 1ml per alb of ideal body weight is non functioning
what does the conductive zone do?
warms and humidifies air to 37 C and 99.5% saturated
transport air
filter incoming air
True or false: healthy adults have no physiological dead space
false. it will just be a small space, unhealthy people like smokers, have lots of unusable alveoli
respiratory zone
site of gas exchange from respiratory bronchioles to alveoli
respiratory bronchiole
bronchiole that contain scattered alveoli
alveolar duct
elongated air passageway, lined by alveoli
alveolar sac
clusters of alveoli that open into a common space
alveoli
site of gas exchange (300 mil by age 8)
physiological dead space
alveoli with no blood supply, no gas exchange
what does movement of air depend on? (2 things)
pressure gradient
resistance
pressure gradient
high pressure to low pressure
resistance of air flow
tissue friction
airway resistance
