entire inside of the cell (intracellular fluid) is
neutral
entire outside of the cell (extracellular fluid) is
neutral
is potassium more intracellular or extracellular
intracellular
is sodium more intracellular or extracellular
extracellular
is chloride more intracellular or extracellular
extracellular
is protein (P-) more intracellular or extracellular
intracellular
does resting membrane potential require a stimuli
no
what is charge of the resting membrane potential
-70 to -90 millivolts
the resting membrane charge occurs because
K+ goes from inside the cell to the outside
does local potential require a stimuli
yes
what happens to the membrane because of the stimuli for local potential
the membrane become more permeable to either K+ or Cl- or Na+
if the membrane in local potential become more permeable to K+ then what happens to K+
K+ moves from inside the cell to the outside, making the inside of the cell membrane more negative.
what is it called when K+ moves from inside the cell to the outside, making the inside of the cell membrane more negative.
hyperpolarization
If the membrane became more permeable to Cl- then what happens
Cl- moves from outside the cell to the inside, making the cell more negative.
what is it called when Cl-moves from outside the cell to the inside, making the cell more negative.
hyperpolarization
if the membrane became more permeable to Na+ then what would happen
Na+ moves from out to in, making the inside less negative
what is it called when Na+ moves from out to in, making the inside less negative
depolarization
what is the only one that touches the threshold
depolarization
requires a stimuli
local potential
can be of two types
local potential
is graded
local potential
can show the phenomenon of accommodation
local potential
occurs if a depolarizing type of local potential touches the threshold
action potential
shows a all or non phenomenon
action potential
has three phases
action potential
due to Na+ moving form outside to inside making the inside of the cell membrane less negative and then positive
depolarizing phase of action potential
due to K+ moving from inside to outside making the inside of the cell membrane less positive and then negative
repolarizing phase of action potential
due to sodium-potassium exchange pump, requires energy
afterpotential phase
transmission of action potential from one cell to the other cell occurs at specialized areas called
synapse
what requires the use of neurotransmitters (acetylocholine, dopamine, etc)
synapse