research Perspectives on Hair Evolution Based on Some Comparative Studies on Vertebrate Cornification
Hair in mammals likely evolved from glandular structures, not scales.
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150-180 / 1000+ results research J. Cosmet. Sci., 59, 263–289 (July/August 2008) Characterization of curved hair of Japanese women with reference to internal structures and amino acid composition
Japanese women's curved hair has an uneven internal structure and varied amino acid composition.
research Spontaneous Super-Contraction of Animal Hair
Animal hair can curl tightly on its own, especially in foxes, due to changes in keratin.
research Structural interspecies variability of mammals' hairs
Mammal hairs have different internal structures.
research Circle hairs involving the extremities in a young girl
Circle hairs are harmless, spiral-shaped body hairs that don't need medical treatment.
research Characterization of curved hair of Japanese women with reference to internal structures and amino acid composition.
Japanese women's curved hair has an uneven internal structure and varying amino acid composition.
research The three-dimensional microvascular and collagen fibrillar arrangements around rat vibrissa hairs as revealed by scanning electron microscopy
The lower part of rat vibrissa hair gets more blood and is well-protected for growth.
research Fine structure and immunocytochemistry of monotreme hairs, with emphasis on the inner root sheath and trichohyalin‐based cornification during hair evolution
Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.
research Cortical cell types and intermediate filament arrangements correlate with fiber curvature in Japanese human hair
Hair curvature in Japanese people is linked to specific cell types and filament arrangements in the hair cortex.
research Investigating the internal structure of sheep wool hair fibre using new microscopic techniques
Curly wool has more orthocortex than straight wool.
research Hair structure anatomy and comparative anatomy1 1Dedicated to the memory of the late Dr. R. E. Rivett whose untimely death prevented his role in co-authorship.
Human hair is complex and grows in cycles starting from embryonic life.
research Pathogenesis in pili torti: morphological study
Pili torti hair twists due to uneven outer root sheath cell development.
research Keratin formation in the hair follicle
Keratin fibrils in hair form and stop growing at specific points in the follicle.
research Local structure of human hair spatially resolved by sub-micron X-ray beam
Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.
research Circle hairs are not rolled hairs
research Pseudopili Annulati in a Dark‐Haired Individual: A Light and Electron Microscopic Study
A dark-haired Chinese girl had hair that looked banded under certain light but was normal under a microscope.
research TARSAL CONTACT CHEMOSENSORY HAIRS OF THE LARGE WHITE BUTTERFLY PIERIS BRASSICAE AND THEIR POSSIBLE RÔLE IN OVIPOSITION BEHAVIOUR
B-type hairs on female butterfly legs help them choose where to lay eggs.
research TRICHOSTASIS SPINULOSA
Trichostasis spinulosa mainly affects the nose, with many tiny hairs in one follicle, possibly influenced by hormones and sunlight.
research Single-Cell Transcriptomics Reveals the Molecular Anatomy of Sheep Hair Follicle Heterogeneity and Wool Curvature
The research identified genes that explain why some sheep have curly wool and others have straight wool.
research 2P546 Structural Analysis of Curly and Straight Human Hair Fibers by Scanning Microbeam SAXS(52. Bio-imaging,Poster Session,Abstract,Meeting Program of EABS & BSJ 2006)
Curly and straight hair differ in how their internal fibers are arranged.
research Helical twist direction in the macrofibrils of keratin fibres is left handed
Keratin fibers in hair twist left-handed.
research Comparative aspects of the inner root sheath in adult and developing hairs of mammals in relation to the evolution of hairs
The inner root sheath evolved to help hair grow safely through the skin in mammals.
research Divergent genetic mechanism leads to spiny hair in rodents
Rodent spiny hair traits are due to genetic factors other than the Edar gene.
research Intrinsic curvature in wool fibres is determined by the relative length of orthocortical and paracortical cells
Wool fibre curvature is due to longer orthocortical cells compared to paracortical cells.
research Quantifying whole human hair scalp fibres of varying curl: A micro‐computed tomographic study
Human hair varies in structure based on curl type, with high curl hair showing the most differences.
research Cyclical dermal micro-niche switching governs the morphological infradian rhythm of mouse zigzag hair
Mouse zigzag hair bends form due to a 3-day cycle of changes in hair progenitors and their environment.
research Internal structural changes in age‐related curved hair due to cyclical extension: An IR spectroscopy study
Age-related hair curvature increases due to internal structural changes from grooming.
research Acquired curved hair is caused by fusion of multiple hair matrix cells
Curved hair can develop when hair cells merge abnormally during growth.
research Animal Hair Fibers
Rabbit hair fibers are similar to wool and have a hollow center like feathers.
research ELECTRON MICROSCOPE STUDIES OF HAIR AND WOOL
Hair and wool have complex microscopic structures with microfibrils and varying cystine content.