pose this cell were exposed to tetrodotoxin (TTX). Draw a graph depicting the ect of the drug on the membrane's permeability to Na+, K+, and the action tential. person was exposed to TTX, what would happen?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Suppose this cell were exposed to tetrodotoxin (TTX). Draw a graph depicting the
effect of the drug on the membrane's permeability to Na+, K+, and the action
potential.
If a person was exposed to TTX, what would happen?
Transcribed Image Text:Suppose this cell were exposed to tetrodotoxin (TTX). Draw a graph depicting the effect of the drug on the membrane's permeability to Na+, K+, and the action potential. If a person was exposed to TTX, what would happen?
(a)
Membrane potential (mv)
(b)
Relative membrane permeability
80
-70
600
300
100
PN
O
Resting membrane
potential
Na
2°
Threshold potential
Voltage-gated Na channels
Voltage-gated K channels
Time (msec)
Transcribed Image Text:(a) Membrane potential (mv) (b) Relative membrane permeability 80 -70 600 300 100 PN O Resting membrane potential Na 2° Threshold potential Voltage-gated Na channels Voltage-gated K channels Time (msec)
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