Small environment, great pictures: Our fascinating micro-world #3
Hair is a long horn filament consisting essentially of keratin. They fulfil versatile functions such as heat and light protection, moisture protection and moisture regulation as well as camouflage.
In mammals, hair is roughly composed of three layers:
From the inside to the outside the medulla, the cortex and the cuticle. The cuticle, also called cuticle layer, consists of horny dead cells. In healthy hair, this outer layer fits tightly and ensures the healthy shine of the hair.
Humans have between 75,000 and 150,000 hairs, with a variable diameter of approx. 0.05 mm. Most hair usually has blond people.
With the scanning electron microscope the structure and "quality" of the hair and the effect of hair care products can be checked easily and cost-effectively.
E.g. via our service page in the strucTEM microscopy shop https://www.structem.eu:
Hair under the scanning electron microscope. 1) Bumblebee hair with pollen. 2) healthy human hair, 3) human hair with split ends. 4) Cat hair 5) Dog hair 6) Mouse hair © strucTEM 2018
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