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17 terms

endocrine and nervous systems

list of terms for endocrine and nervous systems
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gland
makes hormones
positive feedback
feedback which tells the brain to send more of a signal
negative feedback
feedback which tells the brain to stop sending a signal
spinal cord
relays messages between body and brain, reflexes
neuron
a nerve cell
dendrite
part of a neuron that receives signals
axon
long thin part of neuron between cell body and end brush
synapse
space between neurons
resting potential
neuron at rest with more positive charge outside of the cell
action potential
state of a signal being sent down a neuron by a flow of Na+ ions flowing in
hypothalamus
part of brain responsible for monitoring homeostasis
homeostasis
state of having all the correct levels of conditions in a cell or organism
receptor
cell membrane protein that binds to signal molecules
neurotransmitter
molecule that transmits signal from one neuron to another through the synapse
cerebrum
part of brain responsible for conscious thought
sensory neuron
carries signal from body to brain
motor neuron
carries signal from brain to body