The Cuticle of Mammalian Hair

Appleyard, H. M.; Greville, C. M.

doi:10.1038/1661031a0

Cited by 18 publications

(7 citation statements)

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“…6, 9, 10): Thus only about one-fifth to one-sixth of each cuticle cell in the longitudinal direction is exposed on the surface of the fibre, the remainder is covered by overlapping neighbouring cells. This agrees well with the result obtained by Appleyard and Greville (1950) using a different method.…”

Section: (C) Human Hairsupporting

confidence: 83%

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Keratin Fibres IV. Structure of Cuticle

Bradbury¹,

Leeder²

1970

Aust. Jnl. Of Bio. Sci.

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SummaryThe cuticle structure of keratin fibres of placental mammals, marsupials, and monotremes has been examined by the techniques of light microscopy and scanning electron microscopy. These techniques have been used to study both intact fibres and whole cuticle cells separated by formic acid treatment.. Observations have been made on: (1) the size and shape of individual cuticle cells and the manner in which they are arranged in the surface of the fibre; (2) the large number of false scale edges (i.e. scale markings which do not correspond with the distal edge of a cuticle cell) for kangaroo and platypus fur; (3) variations in scale pattern along the length of seal and platypus fur and guard hair. The mechanism of scale formation in the follicle is discussed.

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Section: (C) Human Hairsupporting

confidence: 83%

“…c. 125 /Lm) and of most coarse keratin fibres is many cells thick (RudallI941; Appleyard and Greville 1950). This is confirmed by the present work where the average distance between successive scale edges in Figures 5 and 7 is about 6/Lm, whereas the average dimensions of isolated cuticle cells is about 30 by 40/Lm (Figs.…”

Section: (C) Human Hairsupporting

confidence: 79%

Keratin Fibres IV. Structure of Cuticle

Bradbury¹,

Leeder²

1970

Aust. Jnl. Of Bio. Sci.

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“…In human hair, which is typical of many of the coarser wool and hair fibers E12], only approximately one-sixth of each cuticle cell lies in the outer surface of the fiber, the remainder being under the next several overlapping scales (2,4]. The Allworden sac pattern (4) is very different from that of Merino wool.…”

Section: Resultsmentioning

confidence: 99%

“…The presence of such scattering was associated with structural irregularities along the length of the fibers. Several recent investigations [2,3,4] have been made of the light-scattering properties of single filaments. These investigations have been facilitated by the use of the intense, monochromatic, and coherent 6328 to wavelength beam from He-Ne lasers.…”

Section: Introductionmentioning

confidence: 99%

The Discontinuous Nature of Epicuticle on the Surface of Keratin Fibers

Leeder

Bradbury

1971

Textile Research Journal

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There has been considerable controversy over the question of whether the epicuticle forms a continuous outer sheath on keratin fibers or surrounds each cuticle cell individually. The evidence advanced by earlier workers in support of the former concept is reassessed critically and reinterpreted in other ways. At the same time, the formation of Allwörden sacs on isolated cuticle cells and other results show that the latter concept is correct, viz, that the epicuticle surrounds each cell individually and, hence, forms part of the cell membrane complex.

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“…Kassenbeck These show the bilateral differentiation of the cuticle very clearly; the cuticle cells obviously overlap more on the paracortical side, and they also appear to be longer on that side (Kassenbeck's Figs. 1 and 2). However, later in the same paper Kassenbeck proposed a model which, while based on greater overlapping on the paracortical side, had the cells longer on the orthocortical side.…”

Section: Introductionmentioning

confidence: 96%

Bilateral Differentiation in the Cuticle of Merino Wool Fibers

Makinson

1978

Textile Research Journal

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An examination by transmission electron microscopy of longitudinal sections of merino wool fibers drawn from 64s top and sectioned in the plane of the crimp and the equatorial plane of the fiber has revealed two significant differences between the cuticular cells on the intrados and extrados of the crimp. (i) The cells on the intrados (paracortical side) overlap each other by lengths that are from 2 to 6 times as great as on the extrados (orthocortical side). (ii) The cells on the intrados are longer, by from 5 to 82% on different fibers, than those on the extrados. Variation between fibers was found to be significant on both sides for overlap, but only on the paracortical side for cell length.No significant difference was found between the sides in either the proportion of "false" scale edges or the scale-edge spacings, except for an indication, based on a small subsample, that a difference in the latter might be developed by chemical treatment.Some other features of the cuticular cells are also described.

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The Cuticle of Mammalian Hair

Cited by 18 publications

References 0 publications

Keratin Fibres IV. Structure of Cuticle

Keratin Fibres IV. Structure of Cuticle

The Discontinuous Nature of Epicuticle on the Surface of Keratin Fibers

Bilateral Differentiation in the Cuticle of Merino Wool Fibers

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