Animal Nerve Function

Neuron

Cells of the nervous system that transmit electrical and chemical signals.
Cells of the nervous system that transmit electrical and chemical signals.

Neuron
Dendrite

Part of the neuron that receives signals.
Axon

Part of the neuron that delivers signal
Part of the neuron that delivers signal

Axon
Part of the neuron that receives signal

dendrite
Resting potential
- Difference in charge across a non-active cell
- membrane
Difference in charge across a non-active cell
membrane

Resting potential
Action potential

rapid, temporary change in charge across membrane that transmits signal.
rapid, temporary change in charge across membrane that transmits signal.

Action Potential
3 phases of action potential
- depolarization
- repolarization
- hyperpolarization
Voltage-gated channels

Controls ion flow by opening and closing in response to changes in membrane voltage.
Controls ion flow by opening and closing in response to changes in membrane voltage.

Voltage Gated Channels
Schwann cells
- Makes up the myelin sheath (behaves as
- insulation)
Makes up the myelin sheath (behaves as
insulation)

Schwann cells
Node of Ranvier
- Space between schwann cells. (signal jumps
- between them)
Space between schwann cells. (signal jumps
between them)

Node of Ranvier
Synapse

Area between two adjacent neurons
Area between two adjacent neurons

Synapse
Neurotransmitter

molecules released to transmit information.
molecules released to transmit information.

neurotransmitter

Author

yourmomhaslice

ID

212809

Card Set

Animal Nerve Function

Description

no

Updated

2013-04-11T04:31:50Z

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