MEMBRANE POTENTIAL

Question 1

difference in potential between the interior and exterior of the cell due to differences in ion concentration

In general, the interior of the cell has a net negative charge, while its exterior has a net positive charge

Answer 1

Membrane potential

Question 2

Cells not exited
Normal __mV to __mV
Neuron __mV to __mV

Answer 2

Resting membrane potential
-70 to -90
-40 to -90

Question 3

Force needed to cancel out a concentration gradient.
Describe equilibrium potential for any ion species

Answer 3

Nernst potential
Nernst equation

Question 4

Travels only short distances
___ named because the potential charge’s magnitude can vary
Travels long distances of the nerve and muscle

Answer 4

Graded potential
Aptly
Action potential

Question 5

Depends on the stimulus
Direct proportional
Several stimuli applied at different time intervals.
Several stimuli even in different spots are applied.

Answer 5

Strength of current
Temporal summation
Spatial summation

Question 6

Two types of graded potentials

Answer 6

EPSP
IPSP

Question 7

Makes the cell MORE vulnerable to stimuli
Makes the cell LESS vulnerable to stimuli

Answer 7

Excitatory postsynaptic potential
Inhibitory postynaptic potential