endocrine and nervous systems

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list of terms for endocrine and nervous systems

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

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