Physiological Psychology
an increase in membrane potential, away from 0 mV. ✔✔The term "hyperpolarization" refers
to
slower closing of the K+ channels. ✔✔The temporary hyperpolarization that occurs at the end
of the action potential is caused by the
undergo no changes in strength, speed, or duration ✔✔A particular electrical signal being
transmitted to a neuron is sufficient to generate an action potential. If the magnitude of the
incoming electrical signal is doubled, the action potential will
Na+ (Sodium) ✔✔Upon reaching the threshold for an action potential, the next step in its
generation is the opening of _______ channels.
Action potential reaches axon terminal, calcium ion channels open, vesicles fuse with
membrane, diffusion of neurotransmitter ✔✔Which of the following presynaptic events are
presented in correct chronological order?
graded potential. ✔✔Postsynaptic potentials are a type of
after a neuron has fired an action potential during which the same neuron cannot fire another
action potential. ✔✔The absolute refractory period refers to the brief period of time
partially established by the uneven distribution of ions across the membrane. ✔✔The resting
membrane potential is
Chloride ✔✔In the extracellular or intracellular fluid, which of the following is an anion
(negatively charged ion)?
binds to it. ✔✔A ligand of the acetylcholine receptor is a substance that
an increase in membrane potential, away from 0 mV. ✔✔The term "hyperpolarization" refers
to
slower closing of the K+ channels. ✔✔The temporary hyperpolarization that occurs at the end
of the action potential is caused by the
undergo no changes in strength, speed, or duration ✔✔A particular electrical signal being
transmitted to a neuron is sufficient to generate an action potential. If the magnitude of the
incoming electrical signal is doubled, the action potential will
Na+ (Sodium) ✔✔Upon reaching the threshold for an action potential, the next step in its
generation is the opening of _______ channels.
Action potential reaches axon terminal, calcium ion channels open, vesicles fuse with
membrane, diffusion of neurotransmitter ✔✔Which of the following presynaptic events are
presented in correct chronological order?
graded potential. ✔✔Postsynaptic potentials are a type of
after a neuron has fired an action potential during which the same neuron cannot fire another
action potential. ✔✔The absolute refractory period refers to the brief period of time
partially established by the uneven distribution of ions across the membrane. ✔✔The resting
membrane potential is
Chloride ✔✔In the extracellular or intracellular fluid, which of the following is an anion
(negatively charged ion)?
binds to it. ✔✔A ligand of the acetylcholine receptor is a substance that
