Problem
A. Diagram and label or describe a simple reflex arc.
B. Describe the properties of a voltage gated sodium channel. What is its' role in an action potential? What is the result of the inactivation effect of the inactivating particle?
C. Define time constant. Define length constant. Describe the membrane properties that cause it to have a time and length constant.
D. Sketch and label a membrane with all of the major lipid and protein components and ions and concentration gradients involved in maintaining the resting membrane potential.
E. Sketch and label a graph of a single Action Potential.
F. You are given some experimental data that allows you to calculate the conduction velocity of an action potential in two different nerve axons. #1 = 47 m/s and #2 = 0.3 m/s. What are probably the two most important differences in the physical characteristics of these two different axons?
G. Describe the properties of a voltage gated potassium channel. What is its' role in an action potential? Is there any effect of the inactivating particle?
H. Describe the sequence of events at a typical fast chemical synapse.
I. What are the three different possible electrical currents in the post synaptic cell?
J. What is the chemical/electrical response of the post synaptic cell when neurotransmitter is released from the pre synaptic cell at a fast chemical synapse?