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a chemical messenger trait transfers information across a synapse.
a protein structure embedded in the neural membrane that uses energy to move calcium ions out of the cell
an uncovered section of azon membrane betwerrn two adjacent segments of myolin
node of ranvier
an organelle in the cell body that participates in protein synthesis
a neuron with one branch that extends a short distance from the cell body then splits into two branches
the branch of a neuron usually responsible for carrying the signals to other neurons
an ion pump that uses energy to transfer three sodium ions to an extracellular fluid for every two potassium ions retrieved from the extracellular fluid.
the branch of a neuron that generally receives information from other neurons
the fluid inside a cell
an organelle in the cell body that packages proteins in vessels.
organelles that provide energy to the cell by transforming ppyrobic and oxygen into molecules of adenosine triphosphate
the swelling at the tip of the axon collateral specialized for the release of neurotransmitter substances
the junction between two neurons at which information is transfere from one to another
a knob on the dendrite that provides additional membrane area formation of synapses with other neurons
the tiny fluid filled space between neurons formina a synapse
the cone shaped segment of axon located at the axon cell body that is specialized for the generation of action potentials
a neuron with two branches one axon and one dendrite
an ion channel in the neural membrane that responds to chemical messangers
ligan gated channel
an electrically charged particle in solution
the fatty insulating material covering some axons that bossts the speed and efficiency of electrical signaling
a neuron that communicates with neurons in its immediate vacinity
local circuit neuron
a neuron with a very large axon that communicates with neurons in distant areas of the nervous system
an ion channel that opens or closes in response to the local electrical environment
voltage dependant channel
a protein structure embedded in a cell membrane that uses energy to move the ions across the membrane
a protein structure in a cell membrane that allow ions to pass without the use of additional energy
a property of a substance that determines the extent to which other substances may pass through it.
a small structure in the axon terminal that contains neurotransmitters.
one of the branches near the end of the axon closest to its targets
golgi apparatus axon neurons