University:
Cypress College
Course:
CHEM 103 C | Chemistry and Society
Academic year:

2022
Views:

14

Pages:

1
Author:

RachCarter87

Action Potential *Electrical Potential Different B/W Inside Z outside During Action. Steps [Stimulus, Depolarization, Repularization, After Depolriztion Hyper Polarization, After Hyper Polarizachion, RMP] Stimulus: - causes opening of Voltey gated Noa channels Na in Flux Change of the inside charge From the Ve charge to the charge - Depolarizahun:- change Rmp From -70mv to +35 mv -Repularizalioni-return membrane Potential From +35 mv to Rmp [Stupping Not influx & +K'efflux Firing Level:- lt all Not channel opent at -55mv ★ Aciton potential have 2 gated Voltage-gated Nat channel • Activation gate During Rest-op closed Dporization •During Dro Some at (-63 mV) Lall at (-55m-v) In Activation gate Colse-slowly Time of AP Spik 2 m-s Magnitude : 105 ms [-70+1+351] After Depolarization-H hyper Polarization Hors all hme = 46m-s mom - 26 -70-40 26m5 Voltage gated Kchannel only one gate •Closed During Rest Start open in Late Deporizdian Completely opened End " opened ut Repotiarization