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Neuron Anatomy. Neuron. Dendrites: ( dend = tree) cell processes that carry electric impulses from an incoming nerve to a cell body. Hundreds per neuron. Neuron.

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Neuron
Neuron

Dendrites: (dend = tree) cell processes that carry electric impulses from an incoming nerve to a cell body. Hundreds per neuron.


Neuron1
Neuron

Dendrites: (dend = tree) cell processes that carry electric impulses from an incoming nerve to a cell body. Hundreds per neuron.

Cell body: Contains nucleus, cytoplasm, and organelles. Metabolic center of a cell.


Neuron2
Neuron

Dendrites: (dend = tree) cell processes that carry electric impulses from an incoming nerve to a cell body. Hundreds per neuron.

Axon: Cell process that carries electric signals away from the cell body. Up to 3-4 ft. long.

Cell body: Contains nucleus, cytoplasm, and organelles. Metabolic center of a cell.


Neuron3
Neuron

Dendrites: (dend = tree) cell processes that carry electric impulses from an incoming nerve to a cell body. Hundreds per neuron.

Axon: Cell process that carries electric signals away from the cell body. Up to 3-4 ft. long.

Schwann cells: made of fat, wrap around axon to form myelin insulation. Increases the speed of nerve conduction, like insulation.

Cell body: Contains nucleus, cytoplasm, and organelles. Metabolic center of a cell.


Neuron4
Neuron

Dendrites: (dend = tree) cell processes that carry electric impulses from an incoming nerve to a cell body. Hundreds per neuron.

Nodes of Ranvier: (gaps between Schwann cells) Electrical signals jump from gap to gap, speeding conduction.

Axon: Cell process that carries electric signals away from the cell body. Up to 3-4 ft. long.

Schwann cells: made of fat, wrap around axon to form myelin insulation. Increases the speed of nerve conduction, like insulation.

Cell body: Contains nucleus, cytoplasm, and organelles. Metabolic center of a cell.


Neuron5
Neuron

Dendrites: (dend = tree) cell processes that carry electric impulses from an incoming nerve to a cell body. Hundreds per neuron.

Nodes of Ranvier: (gaps between Schwann cells) Electrical signals jump from gap to gap, speeding conduction.

Axon: Cell process that carries electric signals away from the cell body. Up to 3-4 ft. long.

Schwann cells: made of fat, wrap around axon to form myelin insulation. Increases the speed of nerve conduction, like insulation.

Myelin sheath

Cell body: Contains nucleus, cytoplasm, and organelles. Metabolic center of a cell.


Neuron6
Neuron

Dendrites: (dend = tree) cell processes that carry electric impulses from an incoming nerve to a cell body. Hundreds per neuron.

Nodes of Ranvier: (gaps between Schwann cells) Electrical signals jump from gap to gap, speeding conduction.

Axon terminals: hundreds of thousands

Axon: Cell process that carries electric signals away from the cell body. Up to 3-4 ft. long.

Schwann cells: made of fat, wrap around axon to form myelin insulation. Increases the speed of nerve conduction, like insulation.

Myelin sheath

Cell body: Contains nucleus, cytoplasm, and organelles. Metabolic center of a cell.


Neuron7
Neuron

Dendrites: (dend = tree) cell processes that carry electric impulses from an incoming nerve to a cell body. Hundreds per neuron.

Nodes of Ranvier: (gaps between Schwann cells) Electrical signals jump from gap to gap, speeding conduction.

Axon terminals: hundreds of thousands

Axon: Cell process that carries electric signals away from the cell body. Up to 3-4 ft. long.

Synaptic bulb: contain neurotransmitter released with impulse

Schwann cells: made of fat, wrap around axon to form myelin insulation. Increases the speed of nerve conduction, like insulation.

Myelin sheath

Cell body: Contains nucleus, cytoplasm, and organelles. Metabolic center of a cell.


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