1.10.2014 Cellular Physiology II

Embed Size (px)

DESCRIPTION

cellular physiology

Citation preview

Select the labeled line that best illustrates the change in resting membrane potential of a neuron resulting from: 1. A 2-fold decrease in extracellular potassium concentration 2. Maximal increase in sodium conductance

What techniques may be used for investigating electrical properties of neurons ?

Erwin Neher & Bert SakmannNobel Prize for Medicine, 1991

2

Walter Nernst (died in 1941, ermany)4

Select the labeled line that best illustrates the change in resting membrane potential of a neuron resulting from: 1. A 2-fold decrease in extracellular potassium concentration2. Maximal increase in sodium conductance

Lecture OutlineReviewPassive membrane properties

Do neurons display electrical properties in the absence of an action potential?

Tau ()The time ConstantLamda ()The Length Constant