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Handout Master 2.3Fill-in-the-Blanks1.An extensive network of specialized cells that carry information to and from all parts of the body is called the nervoussystem.2.The basic cell that makes up the nervous system and which receives and sends messages within that system is called a neuron.3.The long tube-like structure that carries the neural message to other cells on the neuron is the axon.4.On a neuron, the branch-like structures that receive messages from other neurons is the dendrites.5.The cell body of the neuron, responsible for maintaining the life of the cell and contains the mitochondria is the soma.6.The fatty substances produced by certain glial cells that coat the axons of neurons to insulate, protect, and speed up the neural impulse is the myelin.7.The bundles of axons in the body that travel together through the body are known as the nerves.8.The charged particles located inside and outside of the neuron are called ions.9.The state of the neuron when not firing a neural impulse is known as the restingpotential.10. The synapticvesiclesare sack-like structures found inside the synaptic knob containing chemicals.11. Neurotransmitterare chemicals found in the synaptic vesicles which, when released, has aneffect on the next cell.