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Loss of Isotonic Fluid. E CF. ICF. Infusion of Isotonic Fluid. E CF. ICF. Loss of Hypotonic Fluid. E CF. ICF. Ingestion of salt tablets. E CF. ICF. Ingestion of 1 liter of tap water. E CF. ICF. Infusion of Hypertonic saline. E CF. ICF. Primary adrenal Insufficiency. E CF. ICF.
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Loss of Isotonic Fluid ECF ICF
Infusion of Isotonic Fluid ECF ICF
Loss of Hypotonic Fluid ECF ICF
Ingestion of salt tablets ECF ICF
Infusion of Hypertonic saline ECF ICF
Primary adrenal Insufficiency ECF ICF
Action Potential Na+ Na+ Na+ Relative Refractory Period +65 Na+ 0 Depolarization Na+ Influx Repolarization K+ E-flux Absolute Refractory Period T -55 RMP -70 Hyperpolarization -85 K+
Action Potential Relative Refractory Period +65 Na+ 0 Depolarization Na+ Influx Repolarization K+ E-flux Absolute Refractory Period T -55 RMP -70 Hyperpolarization -85 K+
Action Potential • At which labeled point on the action potential is the K+ closest to electrochemical equilibrium? • 1 • 2 • 3 • 4 • 5 Na+ equilibrium potential 3 +35 mV 0mV 2 4 1 -70mV 5 K+ equilibrium potential
Action Potential • What process is responsible for the change in membrane potential that occurs between point 1 and point 3? • Movement of Na+ into the cell • Movement of Na+ out of the cell • Movement of K+ into the cell • Movement of K+ out of the cell • Activation of the NA+-K+ pump • Inhibition of the NA+-K+ pump Na+ equilibrium potential 3 +35 mV 0mV 2 4 1 -70mV 5 K+ equilibrium potential
Action Potential • What process is responsible for the change in membrane potential that occurs between point 3 and point 4? • Movement of Na+ into the cell • Movement of Na+ out of the cell • Movement of K+ into the cell • Movement of K+ out of the cell • Activation of the NA+-K+ pump • Inhibition of the NA+-K+ pump Na+ equilibrium potential 3 +35 mV 0mV 2 4 1 -70mV 5 K+ equilibrium potential
Conduction velocity - non-myelinated vs myelinated - non-myelinated myelinated