Neuroscience Chapter 5 Giant Squid Axon

invertebrate

an animal that does not have a backbone

myelin

fatty substances produced by certain glial cells that coat the axons of neurons to insulate, protect, and speed up the neural impulse

propagate

Reproduce, spread, increase

electrical resistance

The property of a material that resists the flow of charged particles through it; measured in ohms

conductance

the ease with which ions flow through a channel

perfuse

to force fluid to flow through a tubelike structure - the giant axon of the squid for instance

passive diffusion

movement of substances across a semipermeable membrane or through a fluid with or along the concentration gradient; this process does not require energy

axoplasm

cytoplasm of axon

permeability

the state or quality of a material or membrane that causes it to allow ions to pass through it.

command potential

membrane voltages that the experimenter determines in a voltage clamp experiment.