Chapter 3 - Voltage-Dependent Membrane Permeability

Question 0

Membrane Conductance

Answer 0

The reciprocal of membrane resistance.

Question 1

Voltage Clamp Method

Answer 1

A technique used to influence the membrane while also measuring the membrane potential.

Question 2

Refractory Period

Answer 2

Following an action potential, a brief period of time in which an axon cannot undergo further excitation.

Question 3

Conduction Velocity

Answer 3

The measurable rate of transmission in an axon.

Question 4

Myelination

Answer 4

The insulation of the axonal membrane. Ogliodendrocytes are responsible for myelination in the CNS, and Schwann cells are responsible for myelination in the PNS.

Question 5

Myelin

Answer 5

Multiple layers of closely opposed glial membranes.

Question 6

Nose of Ranvier

Answer 6

A gap in the myelin wrapping where ions can flow into and out of the axon.

Question 7

Saltatory

Answer 7

The propagation of action potential from node to node as a result of myelination.