respiration Flashcards
fricks law rate of diffusion formula
Q= delta C x SA x D/ delta X
Q= rate of diffusion
C= concentraiotn gradient
D= diffusion coefficient
X= distance
list these 3 layers from inner to outermost layers
visceral pleura, parietal pleura, pleural cavity
which is on lungs, which touhces ribs
inner: visceral pleura (on lungs)
pleural cavity
parietal pleura (on ribs)
tidal volume
Tidal Volume (TV): The amount of air you breathe in or out with each normal breath.
inspiratory reserve volume
Inspiratory Reserve Volume (IRV): The extra amount of air you can inhale after taking a normal breath in.
inspiratory capacity
Inspiratory Capacity (IC): The total amount of air you can inhale after a normal exhalation (TV + IRV).
expiratory reserve volume
Expiratory Reserve Volume (ERV): The extra amount of air you can exhale after a normal breath out.
residual volume
Residual Volume (RV): The amount of air that remains in your lungs after you exhale as much as you can; it prevents the lungs from collapsing.
functional residual capacity
Functional Residual Capacity (FRC): The total amount of air left in your lungs after a normal exhalation (ERV + RV).
vital capacity
Vital Capacity (VC): The total amount of air you can exhale after taking the deepest breath in (TV + IRV + ERV).
total lung capacity
Total Lung Capacity (TLC): The total amount of air your lungs can hold, including all volumes (TV + IRV + ERV + RV).
compliance def
how easy it is to inflate the lungs. how much effort is required to stretch the lungs
elasticity def
how fast the lungs recoil
3 main co2 transportaotin ways and which is most common
3 main ways of transportation:
- CO2is dissolved in blood –5-10%
- CO2bound to Hb–25-30%
- Turned into bicarbonate HCO3-–60-70%
- most used
carotoid bodies measures….
The carotid bodies primarily measure the levels of oxygen (O₂), carbon dioxide (CO₂), and pH (acid-base balance) in the blood going to the BRAIN
pCO2 in arterial blood is normally X mmhg
~ 40 mmHg
Normal [HCO3] in the blood is X mEg/L
24 mEq/L
tropic hormone def
A tropic hormone is a hormone that stimulates the release of other hormones from a different endocrine gland
2 hormones produces by pos pit
ADH and oxytocin
6 hormones produced by ant pit
GH, TSH, ACTH, FSH, LH, prolactin
pneumotaxic center
tells the DRG to stop inhaling and start exhaling.
stops firing the inspiratory neurons
apneustic center
prevents DRG inhaling neurons from being turned off. continue inhaling.
