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16 Cards in this Set

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Current
movement of net positive charges from an anode (+) to cathode (-)
Potassium (K) concentration
inside cells 125, outside cells 5
Sodium concentration (Na)
inside cells 10, outside cells 122
Chloride (Cl) concentration
inside cells 5, outside 125
Calcium concentration
inside 0.0001, outside 2
Large anions concentration
inside 130, outside 0
Cation
positively charged particle (accumulates on the negative pole or cathode of a battery)
Anion
negatively charged particle (accumulates on positive or anode of a battery)
Capacitor
two conducting materials separated by an insulating material, capacitance measured in farads
Which ion can flow across resting membrane
K
Equilibrium potential for K
-80 mV
Equilibrium potential for Na
60 mV
Equilibrium potential for Ca
120 mV
What is voltage and how is it generated and measured?
voltage is the difference in charge between anode and cathode, also called the force exerted on a charged particle, measured in volts.
Na/K ATPase
large membrane spanning protein wiht binding sites for Na, K, ATP, extrudes 3 Na + ions for every 2K+ ions it pumps inside the cell
2 mechanisms of Na channel inactivation
ball and chain and c type inactivation