Fawcett, Don W. (2021). CIL:10950, Felis catus, peripheral neuron, myelinating Schwann cell. In Cell Image Library. UC San Diego Library Digital Collections. Dataset. https://doi.org/10.6075/J0M61J20

Schwann cells in peripheral nerves secrete a layer similar to the basal lamina called the lamina externa, boundary layer, or basement membrane. In this micrograph, the lamina externa surrounds the Schwann cells that wrap around both myelinated and unmyelinated axons in a mixed nerve from cat pericardium. Arrows indicate several examples of the outer limit of the basal lamina. Myelinated axons can be distinguished from unmyelinated ones by presence of repeated dark radial rings. Figure 26 from Chapter 1 (The Cell Surface) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. A PDF copy of the accompanying chapter is available on the ASCB's BioEDUCATE website.

• 2021

• Fawcett, Don W.

Preparation: crosslinking-fixative fixed tissue
Relation to intact cell: microtome-sectioned tissue
Item type: transmission electron microscopy (TEM)
Imaging mode: illumination by electrons; detection of electrons
Parameter imaged: electron density
Source of contrast: stain with broad specificity
Visualization methods: electron-dense stain
Data qualification: Processed

• Cell Image Library Group ID: 10550

• Felis catus

• Basement membrane
• Extracellular region part
• Myelinating Schwann cell
• Peripheral neuron
• Plasma membrane

• Basement membrane organization
• Extracellular structure organization
• Myelination in peripheral nervous system
• Plasma membrane organization

• data
• image

• No linguistic content; Not applicable

Samplenumber: 10950

Doi: https://doi.org/10.6075/J0M61J20

Source data

• Source Record in the Cell Image Library: https://doi.org/10.7295/W9CIL10950

Other resource

• Fawcett, Don W. "The Cell." 2nd ed., W.B. Saunders, 1981, ISBN 0721635849. https://www.ascb.org/career-development/teaching/don-fawcetts-the-cell/

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2022-08-12