Flashcards in Ch 6 - Functional Properties of Neuron Deck (21)

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## this force creates a potential difference and it is measured by work

### electrostatic

1

## conductance equation

### g = sigma x cross sectional area/length

2

## bad conductor

### lipid

3

## conductance is also =

### 1/ resistance

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## current (A) formula

### current (Amps) = potential difference (Volts) x conductance (Siemens)

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## current is usually the flow of ions from blank to blank

### positive, negative

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## work formula

### = force x distance

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## amount of energy that needs to be overcome combined with the electrostatic energy of the capacitor

### force

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## increasing surface area of the axons, the greater the blank because there is more room for blank

### capacitance, charge

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## if the plates of a capacitor are farther apart, then more blank must be done because the blank is lower

### work, capacitance

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## important passive property of the neuron that is the distance where the initial voltage response decays to 37 percent of its initial value

### length constant

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## length constant formula

### wavelength = sqrt(rm / ro + ri)

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## time constant equation

### t = rm x cm

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## large cells have blank time constants

### short

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## small cells have blank time constants

### long

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## ion channels can be thought of as blank

### resistors

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## ion channels allow for the blank property of the membrane

### leaky

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## conductance is related to

### current and voltage

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## no current means there is an equilibrium of blank and blank gradients

### electrical, chemical

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## wide and short axons have blank conductance and blank resistance???

### high, little

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