physics of the lungs and breathing
TRANSCRIPT
-
7/25/2019 Physics of the Lungs and Breathing
1/20
PHYSICS OF THE LUNGSPHYSICS OF THE LUNGS
AND BREATHINGAND BREATHING
-
7/25/2019 Physics of the Lungs and Breathing
2/20
PARTIKEL-PARTIKEL UDARAPARTIKEL-PARTIKEL UDARA
INSPIRASI = 77%N2, 20,9%O2,
0,04%CO2
EKSPIRASI = 77%N2, 16,%O2 ,4,!%CO2
-
7/25/2019 Physics of the Lungs and Breathing
3/20
SISTE" PERNAFASANSISTE" PERNAFASAN
-
7/25/2019 Physics of the Lungs and Breathing
4/20
SISTE" PADA PARU-PARUSISTE" PADA PARU-PARU
P#$&' ('&)*'#)+
I*&' (#$&'
P#$&'
)+$&'#)+
-
7/25/2019 Physics of the Lungs and Breathing
5/20
SISTE" PERTUKARAN OSISTE" PERTUKARAN O22. CO. CO22
DI AL/EOLI SECARA DIFFUSIDI AL/EOLI SECARA DIFFUSI
-
7/25/2019 Physics of the Lungs and Breathing
6/20
G''& #')G''& #')
-
7/25/2019 Physics of the Lungs and Breathing
7/20
Jarak difusi (D)Jarak difusi (D)
GambarGambar RumusRumus
D=D=.(N.t).(N.t)
N=Jumlah tumbukan tiapN=Jumlah tumbukan tiapmolekul denganmolekul dengan
molekulmolekul lainlain
=jarak ratarata=jarak ratarata antarantar
tumbukantumbukant=laman!a tumbukant=laman!a tumbukan
D
-
7/25/2019 Physics of the Lungs and Breathing
8/20
C*3 '&'5 )+)
8'&'5 )+) #$5# O2) '&' *)'( 1+$5, N=1010*5' *)'( 1 +$5,=10-7
D=10-7:1010;1
-
7/25/2019 Physics of the Lungs and Breathing
9/20
HUKUM HUKUM FISIKA DALAM
PERNAFASAN
1> H5 D'#*, *$5'' ('&*)5$# '&'
2> H5 B?#$, *$5'' '&' ) )*&'(#$&'
> H5 L'(#'@$, *$5'' '&' ) '#$#)
-
7/25/2019 Physics of the Lungs and Breathing
10/20
HUKU" DALTONHUKU" DALTON
S'* @'(&' :'&'; *$&)&) '*'+
('&*)5$#-('&*)5$# '+, *)'(-*)'( ('&*)5$# '+
$$&) 5*&)+) *$5'' **'# +$'5'-
'5' ('&*)5$# '+ )* $&'' +$)&)
C*3 '&' '#' &'' :O2 20% .
N20%;$&*$5'' 760 H
T$5'' ('&*)5$# O2 20%>7601!0H
T$5'' ('&*)5$#N2 0%>760 610H
-
7/25/2019 Physics of the Lungs and Breathing
11/20
T'$# *$5'' ('&+)'# OT'$# *$5'' ('&+)'# O22. CO. CO22
S)+*$ %O2 P O2
:H;
%CO2 P CO2
:H;
I+()&'+) 20,9 1!0 0,04 0,
'#$#) 14,0 100 !,6 40
E()&'+) 16, 116 4,! 2
-
7/25/2019 Physics of the Lungs and Breathing
12/20
H5 B?#$ :P>/ = KONSTAN;
T$5'' $&') *$&'#)5 $' #$SISTE" KER8A 5$*)5' ()+* )*'&)5, P/ .
PP '5' $&5$' 8)5' ($'+ 5'5 5$*)5'
()+* )*'&)5 #$
)*&'(#$&' $)5'*+$3)' *$5'' *&+$@'&' &'+*)+
8)5' ($'+ #$'3, 5$*)5'()+* )*'&)5 #$)*&'(#$&' $&*''3+$)5)* +$3)' *$5''*& +$)5)*
P$&'3' )) /
-
7/25/2019 Physics of the Lungs and Breathing
13/20
KO"PLIANSI
G&')5 K$*$&'' K>N&'# &' $'+'
0,1-0,27 #)*$&R$'3 +$)5)*($&'3' #$ *5($&'3' *$5''$+'&:)&+)+ ('&-('&;
K>T)) ($&'3' #$
?' $+'& *5 ($&'3'*$5'' ?' 5$@)#:R$+()&'*&? )+*&$+++?&$TINGGI
K>NO
R"AL
K>RENDAH
/
P
-
7/25/2019 Physics of the Lungs and Breathing
14/20
Resistansi "istem perna#asan(RResistansi "istem perna#asan(Rgg)$)$
%onstanta &aktu paruparu (')%onstanta &aktu paruparu (')
ukum ohm padaukum ohm padakelistrikan R=*+,kelistrikan R=*+,
RRgg== --+/+/ RRgg=resistansi=resistansi
perna#asan..perna#asan..0m0m112+(liter+se3on)2+(liter+se3on)--=erubahan=erubahantekanan40mtekanan40m1122
/=debit 4.5iter+se3on/=debit 4.5iter+se3on
6ntuk orang de&asa6ntuk orang de&asanormal Rnormal Rgg=787 3m =787 3m 112+2+(liter+se3on)(liter+se3on)
' = R' = Rg.g.00'= konstanta &aktu4"ekon'= konstanta &aktu4"ekon
RRgg=resistansi..=resistansi..
3m3m112+(liter+sekon)2+(liter+sekon)
0=3ompliansi4liter+3m0=3ompliansi4liter+3m1122 %onstanta &aktu%onstanta &aktuberhubungan denganberhubungan denganbagian paruparubagian paruparu
Jika ada bagian paruJika ada bagian paru
paru konstantaparu konstanta&aktun!a lebih&aktun!a lebihlama8bagian tersebutlama8bagian tersebuttidak memperolahtidak memperolahudaraudara
-
7/25/2019 Physics of the Lungs and Breathing
15/20
H5 L'(#'@$H5 L'(#'@$
P = 4>
-
7/25/2019 Physics of the Lungs and Breathing
16/20
SURFACTANTSURFACTANT
ALVEOLIALVEOLI
-
7/25/2019 Physics of the Lungs and Breathing
17/20
SISTE" KER8A SURFACTANT
-
7/25/2019 Physics of the Lungs and Breathing
18/20
ND RITA
ND RITA
A(')#' '?) ?' '& #'3)& *'('A(')#' '?) ?' '& #'3)& *'('
+&'@*'* ) ('&-('& B'?) $$&)*'+&'@*'* ) ('&-('& B'?) $$&)*'
RDS :R$+()&'*&? )+*&$+ +?&$;RDS :R$+()&'*&? )+*&$+ +?&$;
-
7/25/2019 Physics of the Lungs and Breathing
19/20
PENGUKURAN PERNAFASANPENGUKURAN PERNAFASAN
D$' +()&$*$&D$' +()&$*$&
-
7/25/2019 Physics of the Lungs and Breathing
20/20
*olume perna#asan*olume perna#asan