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11 Cards in this Set

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Stimulus
any change or signal in the environment that can make an organism react in some way.
Response
What the body does in reaction to a stimulus
neuron
A cell that carries messages through the nervous system
Nerve Impulse
The message carried by a neuron
Dentrite
A threadlike extension of a neuron that carries nerve impulses toward the cell body
Axon
A threadlike extension of a neuron that carries nerve impulses away from the cell body
Nerve
A bundle of nerve fibers
Sensory Neuron
A neuron that picks up stimuli from the internal or external environment and converts each stimulus into a nerve impulse
Interneuron
A neuron that carries nerve impulses from one neuron to another
Motor Neuron
A neuron that sends an impulse to a muscle, causing the muscle to contract
Synapse
The tiny space between the tip of an axon and the next structure