The Nervous System Flashcards
Stimulus
Any change or signal in the environment that an organism can recognize and react to
Response
A reaction to a stimulus
Neuron
Cells that carry information through your nervous system
Nerve impulse
The message that a neuron carries
Dendrite
a branchlike structure that picks up the impulses
Axon
The long structure leading away from the cell body
Nerve
A bundle of nerve fibers
Central nervous system
Includes the brain and spinal cord and acts like the traffic cop
Peripheral nervous system
Includes all the nerves outside of the central nervous system
Brain
The control center of the nervous system
Spinal cord
A THICK column of nervous tissue that links the brain to the peripheral nervous system
Cerebrum
Interprets input from your senses, controls movement,and caries out complex mental processes such as learning and remembering
Brain stem
Controls your body’s involuntary actions
Cerebellum
Coordinates your muscle actions and helps you keep your balance
Somatic nervous system
Controls your voluntary actions
