A neuron receives a series of stimuli that increases the membrane permeability of Na+, but not enough to cause membrane potential to surpass -55mV. This neuron is said to be __________Blank because it received a subthreshold stimuli.Multiple Choicerefractoryamplifiedgradedfacilitated

Sodium ions move into a neuron during Blank______.Multiple choice question.repolarizationdepolarization

When traveling along an axon, the cell membrane immediately ahead of an action potential depolarizes because of _________blank.Multiple Choicemembrane receptorsdiffusion of sodium currentthe sodium/potassium pumpdecreased membrane permeabilitypotassium efflux

If a neuron's membrane potential measures +25mV, the neuron is __________Blank.Multiple Choicedepolarizedhyperpolarizedrepolarizedpolarized

An ______ postsynaptic potential involves the opening of sodium channels, depolarizing the membrane, and bringing it closer to a threshold level.Multiple choice question.excitatoryinhibitory

Synaptic potentials are __________Blank potentials resulting from opening or closing __________Blank-gated ion channels.Multiple Choicelocal; chemicallyaction; voltageaction; chemically