STUDY SHEET MASTER QUESTIONS WITH
ACCURATE ANSWERS
◉Resting Potential. Answer: charge when a neuron is not firing, the
Na (outside) and K (inside) ions are balanced
◉Depolarization. Answer: influx of Na ions that makes the neuron
more likely to fire
◉Hyperpolarization. Answer: outflow of K ions making the neuron
less likely to fire
◉Action Potential (nerve impulse). Answer: all or none triggering of
nerve that passes along already created information
◉Neurotransmitter. Answer: chemical signal that travels through
the synaptic cleft (fits with a particular receptor)
, ◉Synaptic Cleft. Answer: actual connection point between the axon
and next dendrite
◉Excitatory Signals. Answer: increase action potential
◉Inhibitory Signal. Answer: decrease action potential
◉Glutamate. Answer: excites neurons; important in learning
(neurotransmitter)
◉GABA. Answer: inhibits neurons; important for anxiety regulation
(neurotransmitter)
◉Dopamine. Answer: emotional arousal, pleasure, voluntary
movement and attention (neurotransmitter)
◉Serotonin. Answer: inhibits neurons; mood, depression, emotional
arousal (neurotransmitter)
◉Acetylcholine. Answer: learning and memory (neurotransmitter)
◉Endorphins. Answer: pain relief and elevation of mood
(neurotransmitter)