Electrical Activity Crossword Puzzle

QUESTIONS LIST:

• graded : this type of potential occurs on the cell body
• sodium : the highest concentration of this is found in the ecf
• hyperpolarization : a membrane potential more negative than resting.
• myelinated : this type of nerve fibre conducts action potentials very quickly.
• threshold : if membrane potential reaches this threshold an action potential will be produced.
• terminals : this part of the neuron contains vesicles of neurotransmitter
• relative : in the _ refractory period an action potential can be produced when a stronger stimulus is applied to the nerve.
• depolarization : the membrane potential becomes more positive than resting
• nersnt : this equation can be used to calculate the equilibrium potential
• absolute : in the _ refractory period an action potential cannot be produced.
• potassium : has the highest concentration inside cells
• axon : a long thin extension of the cell body containing cytoplasm
• axonhillock : an action potential is generated in this part of the neuron
• voltagegated : these types of channels open and close in response to changes in membrane potential
• dendrites : increase the surface area that the cell body can receive signals
• repolarization : this occurs when voltage-gated k+ channels open
• action : this type of potential is "all or nothing"
• potential : the separation of charge across a membrane
• resting : a potential of -70mv