Peiramatiko Gymnasio Agion Anargyron B2’ 2015-2016 HAIR… Georgia Zogopoulou Kalliope Despotidou Maria Kalyvioti Hair is composed of 3 principal parts: • Cuticle:outer coating composed of overlapping scales • Cortex:protein rich structure around the medulla that contains pigment • Medulla:central core (may be absent) The word "hair" usually refers to two distinct structures: • the part beneath the skin, called the hair follicle. This organ is located in the dermis and maintains stem cells, which not only re-grow the hair after it falls out, but also are recruited to regrow skin after a wound. • the shaft, which is the hard filamentous part that extends above the skin surface. Facts about hair… • Hair is composed of the protein keratin, which is also the primary component of finger and toe nails • Humans develop hair follicles during fetal development and no new follicles are produced after birth • Hair colour is mostly the result of pigments, which are chemical compounds that reflect certain wavelengths of visible light • Gray hair occurs when melanin production decreases or stops Shampoos and conditioners tend to penetrate through the channels between cuticle layers and then through the junction of cuticle layers and the cortex. Colours… All natural hair colours are the result of two types of hair pigments. Both of these pigments are melanin types, produced inside the hair follicle. Melanin is the dominant pigment in brown hair, and black hair, while pheomelanin is dominant in red hair. Blond hair is the result of having little pigmentation in the hair. Hairstyle A hairstyle or haircut refers to the styling of hair. The fashioning of hair can be considered as an aspect of personal grooming, fashion and cosmetics, although practical, cultural and popular considerations also influence some hairstyles. Traditional hairstyle of Japanese bride Coral beaded hairstyles in Nigeria An Indian bride with Side Swept Curls In ancient Greece Classical Greek hairstyles were very special. They used to have their hair pulled back into a chignon style. Many hairstyles involved braiding the hair and fixing it to the head and decorating with flowers, headbands, ribbons and pieces of metal. Blondes were very rare but a lot of women tried to colour their hair blonde or even red. In ancient Greece… Ancient Greeks also used to sprinkle gold powder into the hair. Men used to have short or shaved hair and they used to grow beards . Protypo Peiramatiko Gymnasio Agion Anargyron B2’ 2015-2016 HAIR… Georgia Zogopoulou Kalliope Despotidou Maria Kalyvioti