Related Experiment Video
Updated: Aug 14, 2026

Preparation and Immunostaining of Myelinating Organotypic Cerebellar Slice Cultures
Published on: March 20, 2019
Changes in myelinated nerve fibres caused by insulating layers
Abstract:
Single myelinated nerve fibres of the frog were investigated electron microscopically and electrophysiologically. The following results were obtained. Dissected internodes exhibited small deteriorations only compared to undissected fibres. In the vaseline seal the cross section area of the axoplasm was reduced by a factor of about 3. In the air gap the corresponding figure was about 5. With electrical measurements of up to 2 h the vaseline seal did not affect the axoplasmic resistance of the belonging internode. In corresponding experiments with an air gap, the axoplasmic resistance of the internode doubled after 49 +/- 14 min (mean +/- S.D.; n = 8). Thereafter, the resistance increased rapidly up to about 3,000 times normal, depending on the atmospheric humidity. The consequences of these findings for potential clamp experiments are discussed.
More Related Videos
09:34Use of In Vivo Single-fiber Recording and Intact Dorsal Root Ganglion with Attached Sciatic Nerve to Examine the Mechanism of Conduction Failure
Published on: August 27, 2019
08:57In Vitro Myelination of Peripheral Axons in a Coculture of Rat Dorsal Root Ganglion Explants and Schwann Cells
Published on: February 10, 2023
Related Concept Videos
Action Potentials
Action Potential
Membrane potential in neurons
Neurons typically have a resting membrane potential of about -70 millivolts (mV). When they receive...
Nervous Tissue: Myelin
Schwann cells begin to form myelin sheaths around axons during fetal development. They wrap around a small...
Action Potential
Membrane potential in neurons
Neurons typically have a resting membrane potential of about -70 millivolts (mV). When they receive...
Propagation of Action Potentials
Neurons (nerve cells) have a resting membrane potential, with a slightly negative charge inside compared to outside. This is maintained by ion channels, such as sodium (Na+) and potassium (K+) channels, which control the flow of ions. When a stimulus, like a touch or a signal from another neuron, triggers the neuron, sodium channels open, allowing sodium ions to...
Neurogenesis and Regeneration of Nervous Tissue