respiratory Flashcards
(26 cards)
concha
layers in the nose
superior to inferior sinuses
frontal, ethmoid and maxillary
larynx superior to inferior
epiglottis, thyroid, cricoid
where does the trachea start
C6
primary bronchi level
T5-6
which bronchus get lodged
right primary bronchus (more vertical angle)
horizontal fissure
right lung between superior and middle
oblique fissure
right lung between middle and inferior
left lung only fissure
rate of diffusion factors
area, concentration, thickness, coefficient of gas
how many layers does gas move through
5 layers
henrys law
same amount of gas in liquid than in the hair
partial pressure of water at 37 degrees
47
dead space air
150mL
residual volume
prevents collapse
venous blood o2 and co2
02 40
co2 46
gas in alveoli o2 and co2
o2 100
co2 40
oxygenated blood o2 and co2
o2 100
co2 40
co2 in the blood
bicarbonate ions, carbonic acid, carbonate ions, dissolved and bound to haemoglobin
haldane effect
o2 bound for haemoglobin reduces its affinity for co2
reverse haldane effect
as o2 goes into tissues it increases its affinity for co2 from cells
left shift
high affinity to oxygen, wont give oxygen to tissues
right shift
lower affinity to oxygen, dumps oxygen
left shift causes
alkaline, carbon monoxide binding
right shift causes
high temp, acidic, raised pCO2, 2.3 DPG
