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Project zenuwwerk - De actieve zenuw

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Antwoorden van de inleveropdracht voor Project zenuwwerk (X_) - practicum Natuurkunde/biofysica - De actieve zenuw. Dit vak behoort tot de studie Medische Natuurwetenschappen (MNW)

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Uploaded on
February 3, 2019
Number of pages
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Written in
2017/2018
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Project zenuwwerk



De actieve zenuw
1
Er wordt gebruik gemaakt van de fowchart, die is verkregen uit de opdracht over de
passieve zenuw. Door de toevoeging van een kalium-kanaal, is een nieuw fowchart
verkregen, te zien in fguur 1. Hierin staat a voor het aantal open kanalen, b voor het aantal
gesloten kanalen, gK voor de geleiding van het kaliumkanaal en de N de fractie van de open
kanalen. Vanuit de fowpijl dNdt kan uiteindelijk de snelheid van de verandering van het
aantal open luiken bepaald worden.




Figuur 1 – Dit is de fowchart voor de acteve zenuw. Hierbij zijn a, b, N, dNdt en Gk
toegevoegd.

Er is in de fowchart gebruik gemaakt van de volgende vergelijkingen:

0,01∗(V m +55)
a n=
1−e
− ( V 10+55 )
m




( V +65

b =0,125∗e 80
) −
m


n


an
ninit =
an +b n

dn
=a n ( 1−n )−b n n
dt
$6.65
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