The structure of adult peripheral myelinated nerve fibers as revealed by phase microscopy

Esmond, William G.; Smith, Aleah

doi:10.1016/0014-4827(58)90202-7

Cited by 5 publications

(1 citation statement)

References 4 publications

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“…There after, the g ratio increases slowly, following an asymptotic curve as it should when the myelin sheath thickness versus axon diameter relationship is linear with a non-zero intercept. This contradicts previous reports of a constant g for all fibre size [Schwarzacher, 1954;Esmond and Smith, 1956]. We believe that the small sample sizes used by some previous workers failed to emphasise the variations in the histological parameters of the large fibres.…”

Section: Myelinated Fibrescontrasting

confidence: 55%

Combined light- and electron-microscopic study of the rat saphenous nerve

Alpsan¹,

Lal²

1980

Cells Tissues Organs

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Using light- and electron-microscopic techniques, a quantitative histological study of the rat saphenous nerve has been carried out. The distribution of myelinated fibre diameters was bimodal; while that of the unmyelinated axons was unimodal. The variation of myelin sheath thickness with axon diameter was non-linear; two straight lines were found to fit the data best. The variation of g (axon diameter/total fibre diameter) with total fibre diameter was also nonlinear, being best fitted by two lines – one straight, the other slightly curved. The number of unmyelinated axons per Schwann cell process was examined. The ratio of unmyelinated axons to myelinated fibres was 3.42:1.

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Section: Myelinated Fibrescontrasting

confidence: 55%