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Lesson 2:The Nervous System Vocabulary

Horizontales
Chemicals that assist in passing a signal through the synapse.
A fatty substance that surrounds the axon and increases the speed at which signals travel.
The part of the nervous system that includes nerves and is not part of the brain and spinal cord
A branch extending from a neuron that receives signals from another neuron through a synapse.
Nerve cells that pass signals from the brain or spinal cord to a muscle or gland
Verticales
A bundle of neurons.
The part of the nervous system that includes the brain and spinal cord.
A doctor who specializes in diagnosing, treating and managing brain disorders
The gap between the branches extending from a neuron's axon that sends a signal to the next neuron.
Nerve cells responsible for receiving external stimuli from the body's environment and passing that signal through nerves to the central nervous system.
The long extension from a nerve cell along which signals travel.