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14 Cards in this Set
- Front
- Back
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Conduct impulses throughout the nervous system.
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Neurons
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Branchlike extensions of the neuron that receive impulses and carry them toward the cell body.
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Dendrites
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Is an extension of the neuron that carries impulses away from the cell body and toward other neurons, muscles, or glands.
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axon
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The junction between neurons
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Synapse
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Chemicals that diffuse across the space to the dendrites of the next neuron
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neurotransmitters
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The brain and the spinal cord together make up the __________, which coordinates all your body's activities
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central nervous system
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Another division of your nervous system that is made up of all the nerves that carry messages to and from the central nervous system.
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peripheral nervous system
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divided into two halves, called hemispheres, that are connected by bundles of nerves
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cerebrum
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located at the back of your brain, controls your balance, posture, and coordination. if injured your movements become jerky
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cerebellum
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part of the brain that controls involuntary activities such as breathing and heart rate.
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medulla oblongata
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an automatic response to a stimulus.
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reflex
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carries impulses from the CNS to internal organs
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autonomic nervous system
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controls many internal functions during times of stress.
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sympathetic nervous system
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controls many of the body's internal functions when it is at rest
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parasympathetic nervous system
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