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Coloured SEM of a split human head hair
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Coloured SEM of a split human head hair
Split hair. Coloured scanning electron micrograph (SEM) of a split human head hair. Here, the hair has split midway along the shaft, rather than at the end. Hair is made up of a fibrous protein (keratin). It consists of three layers: an outer layer or cuticle, scaly in normal hair but lost in this damaged specimen; a cortex (visible) containing hair colour pigments; an inner medulla or core (not seen). Hair may split due to excessive shampooing, bleaching, combing, or blow- drying. Occasionally, brittle hair can be a sign of severe vitamin or mineral deficiency. Magnification: x160 at 6x4.5cm size
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Media ID 6453757
© DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY
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This print showcases the intricate details of a split human head hair, captured through a coloured scanning electron microscope (SEM). Unlike typical split ends at the tip, this hair has experienced a mid-shaft splitting. Composed primarily of keratin, a fibrous protein, hair consists of three distinct layers. The outer layer or cuticle, usually scaly in normal hair, is absent in this damaged specimen. Visible in the image is the cortex layer which contains pigments responsible for hair coloration. However, the inner medulla or core remains unseen. Hair splitting can occur as a result of various factors such as excessive shampooing, bleaching treatments, frequent combing or blow-drying. This SEM image serves as an intriguing reminder of how our daily routines and habits can impact our physical appearance on such minute levels. Interestingly enough, brittle hair may also indicate severe deficiencies in essential vitamins and minerals within one's body. It acts as an external indicator that prompts us to pay closer attention to our overall health and nutritional intake. With its magnification set at x160 and printed at 6x4.5cm size dimensions, this photograph offers viewers an up-close exploration into the fascinating anatomy of human hair while shedding light on potential causes behind common issues like split ends and brittleness.
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