(1) introduction to respiratory system Lecture Flashcards
non respiratory functions
1)filter 2)blood reservoir 3)site of intrathoracic reflexes 4)role in water water balance 5)elimination of volatile substances
lung/ respiratorys act as a filter by
cleaning blood particles that arrive due to macrophages prevents any substances from external envorment
lungs act as a blood reservior
affect by sympatheric
lungs contain small amounts of blood all the time
low capacity of blood
lungs give blood in times of need
lungs excrete more what a day then what?
lungs excreat more sulute a day then kindeys
loss alot of blood/water therw breathing
lower respiratory tract is has what?
sterile enviorment becuase of the agressive white blood cell, and leukocytes
non respiratory functions 2
A) control of respiratrory infections
B) cellular function of lung tissue
C) O2 consumption & energy reguirments
D) clotting
E) scource of biologically active substances
endothelial cells which have blood vessles keep an eye on what?
air quality in the villa
lungs dont use much enegry but the energy used is
glucose
basic concepts
what is the gas law
as volume increases what happens
as volume decreases what happens
pressure of gas decreases
pressue of gas increases
gas law can be used to correct gas volumes messures under ambient condictions (ATPS) to
the warmer it gets the
standard conditions (STPD)
the more saturate it gets (water)
ph20=.37 degress and then that equals what
as tempreture goes up the water vapor pressure does what?
as tempreture goes down the water vapor pressure does what?
47 mmhg (breating in adding to humity) pressure donsnt change
water pressure goes up
water pressure goes down
standart (STPD) is what type of vaules
ambiant (ATPS) is what types of vaules
dry
saturated
daltons law of partial pressrue
any gass in a mixure excerts what?
any gas in a mix of gas, exsert pressure, which is proportinal to the proportion that the gas makes up that mixture
3 gasses=10% 40% 50%
volume 100mmgh
will excert 10/40 and 50
in mixture or by itslef it will exert the same perssure
exerts a partial pressrure
what is air made up of?
looking for PI 760-47=713
N2=79%
O2=20%
then other little things
same everywhere
even at sea level
r PI 760-47=713x .20=142.6mmhg
always parterial pressure is mmhg