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$\bullet$ Signal propagation in neurons. Neurons are componentsof the nervous system of the body that transmit signals as elec-trical impulses travel along their length. These impulses propa-gate when charge suddenly rushes into and then out of a partof the neutron called an axon. Measurements have shownthat, during the inflow part of this cycle, approximately$5.6 \times 10^{11} \mathrm{Na}^{+}$ (sodium ions) per meter, each with charge $+e$enter the axon. How many coulombs of charge enter a 1.5 $\mathrm{cm}$length of the axon during this process?
The total charge of sodium ions that enter 1.5 $\mathrm{cm}$ in the axon is $Q=1.34 \mathrm{nC}$
Physics 102 Electricity and Magnetism
Chapter 17
Electric Charge and Electric Field
Gauss's Law
Electric Potential
University of Michigan - Ann Arbor
University of Washington
Hope College
Lectures
11:53
In physics, a charge is a …
10:30
The electric force is a ph…
01:36
BI0 Signal Propagation in …
03:18
$Neurons$ are components o…
02:28
Transmission of nerve impu…
01:03
Nerve cells transmit elect…
03:09
A nerve signal is transmit…
04:55
$\bullet$ . Electric field…
05:54
Axon capacitance The long …
07:16
Energy stored in axon elec…
01:52
BIO Calcium ion synapse tr…
02:44
Axons. Neurons are the bas…
03:49
Nerve Impulse Propagation …
04:01
01:44
An axon is the relatively …
02:19
(a) Calculate the capacita…
02:32
BIO Nerve Cells Nerve cell…
03:42
BIO Nerve Impulses When a …
01:16
Neurons in our bodies carr…
01:04
Signal transmission from o…
04:03
In the human nervous syste…
00:39
(II) A neuron is stimulate…
in this problem, we need to figure out what the toll charges so cute. Total is equal to the number of eye owns times the charge of the child charge of each island. So in the problem, they give us this factor. They tell us it's positive. E where is equal to one point six times turned to the last 19 Coombs. But we need to calculate this. We're told that there are 5.6 times 10 to the 11 ions per meter. So this is ions per meter. But now we need to multiply by the distance that were actually concerned with, which is 0.15 years. This is the distance that give us give us 1.5 centimeters but we have to convert it into meters in order. Cancel this meters So we do that we get the total number of ions is equal to 8.4 times 10 to the nine. So this is total islands and so this number goes in here and this number goes on here Whenever we multiply these two numbers together to get the toll charge when we get that cute total is equal to 1.344 time, stand to the new line and that's in cool homes. Yes,
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In physics, a charge is a physical property of matter that causes it to expe…
The electric force is a physical force exerted by electrically charged parti…
BI0 Signal Propagation in Neurons. Neurons are components of the nervous sys…
$Neurons$ are components of the nervous system of the body that transmit sig…
Transmission of nerve impulses. Nerve cells transmit electric signals throug…
Nerve cells transmit electric signals through their long tubular axons. Thes…
A nerve signal is transmitted through a neuron when an excess of $Na^+$ ions…
$\bullet$ . Electric field of axons. A nerve signal is transmittedthroug…
Axon capacitance The long thin cylindrical axon of a nerve carries nerve imp…
Energy stored in axon electric field An axon has a surface area of $5 \times…
BIO Calcium ion synapse transfer Children have about $10^{16}$ synapses that…
Axons. Neurons are the basic units of the nervous system. They contain long …
Nerve Impulse Propagation The speed with which nerve impulses travel is dete…
An axon is the relatively long tail-like part of a neuron, ornerve cell.…
(a) Calculate the capacitance per unit length of an axon of radius $5.0 \mu …
BIO Nerve Cells Nerve cells are long, thin cylinders along whichelectric…
BIO Nerve Impulses When a nerve impulse propagates along anerve cell, th…
Neurons in our bodies carry weak currents that produce detectable magnetic f…
Signal transmission from one neuron to another requires a series of processe…
In the human nervous system, signals are transmitted along neurons as action…
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