AP propagation

Question 0

an axon with a very thick myelin sheath would cause AP to move (faster/slower)

Answer 0

faster

Question 1

what are some factors that increase speed of AP transmission?

Answer 1

myelination (myelinated neurons conduct faster)
thickness of myelin sheath (thicker ones conduct more rapidly)
diameter of axon (larger diameter has more surface area and can open more v-gated Na+ at once)

Question 2

an axon with a small diameter would cause an AP to move (faster/slower)

Answer 2

slower

Question 3

what is it about the molecular make-up of oligodendrocytes or neurolemmocytes that makes the axons they myelate propagate APs so quickly?

Answer 3

high lipid concentration

Question 4

in an unmyelinated axon, threshold local current at the trigger zone causes

Answer 4

AP

Question 5

AP in one site causes ______ at the next location

Answer 5

AP

Question 6

what type of AP conduction changes only at the node?

Answer 6

Saltatory