Keratin is synthesized by keratinocytes and is insoluble in water, thus ensuring impermeability and protection for the hair. The layers of cells, called the hair cuticle, theoretically absorb the keratin, resulting in hair that looks full and glossy. A physical side bond that is easily broken by water and heat is a : Hydrogen bond. The fiber on an alpaca’s head between its ears; also called “top knot” and sometimes “bonnet.” Yield The amount of clean fiber sheared from a particular alpaca; also a processing term relating to the percentage of clean fiber after washing out the natural grease and dirt and removing vegetable matter. It’s made up of tightly-packed corkscrew-like curls that tend to be as big around as a pencil. I think most of us already know that our hair is made up of a strong fibrous protein called keratin. Type 3C: This is sometimes called “curly-coily” hair due to its density. The thickened, club-like structure that forms the lowest part of the hair root is the : Hair bulb. The scientific study of the hair, its diseases, and care is called: trichology: The two parts of a mature strand of human hair are the: hair shaft and hair: The tube-like depression or pocket in the skin or scalp that contains the hair root is the: follicle: Hair follicles are NOT found on the: soles of the feet The hair is made up of 95% keratin, a fibrous, helicoidal protein (shaped like a helix) that forms part of the skin and all its appendages (body hair, nails, etc.). All natural hair color is the result of pigment located in the cortex called : Melanin. The hair pulling results in patches of noticeable hair loss; its cause is unknown. Hair bias often stems from stereotypes that black hair in its natural state is dirty or unkempt, says Patricia Okonta, an attorney for the NAACP Legal Defense and Educational Fund. Each hair texture type has its own traits that set it apart from other hair textures and influence the care or treatment it may need. It is a strong indicator of hair health. The cortex or middle layer of each hair, gives the hair the majority of its strength and elasticity and contributes about _____ percent to the overall strength of the hair 80 The natural coloring pigment found in the cortex layer of the hair is ________ It’s very popular on social media and hair care forums. The hair follicle is a tubelike pocket of the epidermis that encloses a small section of the dermis at its base. It is a strong indicator of hair health. The typical mammalian hair consists of the shaft, protruding above the skin, and the root, which is sunk in a pit (follicle) beneath the skin surface.Except for a few growing cells at the base of the root, the hair is dead tissue, composed of keratin and related proteins. Head lice: Tiny insects that live on the scalp and feed on blood. Similarly, the Type 4D hair type was created within the natural hair community. Fine hair is the most fragile hair texture. Each individual hair is thin and only has two hair layers; cortex and cuticle. Hair elasticity refers to the extent to which a single hair strand can stretch before returning to its normal state . And deep within the structure there are linkages and cross-bonds that create a network of strength that reinforce the hair fiber. Hair with high elasticity has a good amount of shine and bounce and is regarded as the strongest of all hair types.
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