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Explore the fascinating world of trichology, the study of hair, through videos and practical insights. Learn about stages of hair growth, hair structures, and the importance of proper hair care. Discover common hair conditions and how to evaluate your hair type. Delve into the secrets of natural hair color and ways to maintain healthy hair. Whether you're dealing with hair loss or seeking to enhance your hair routine, this comprehensive guide has you covered!
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Ritual • Write Hair Type • Favorite thing you like to do to your hair? • Switch papers to the right
Hair under the microscope • http://www.youtube.com/watch?v=zF2wNhFOg6Y
7.1 Hair Theory • Hair Bulb Formation • Hair Growth • Hair Structure and Behavior • Natural Hair Color
Hair Bulb Formation • http://www.youtube.com/watch?v=E7NzRBiXxWM
Hair Theory • only the cells of the hair bulb are alive. The hair fiber or strand itself is not alive.....things that make you go hmm....
folicle shape • round • oval • elliptical
Two Primary Parts of Hair • hair root • hair fiber
Curly Hair • has a flattened eliptical shape
Hair Growth • http://www.youtube.com/watch?v=YSFUNPxvyz8
Papilla • filled with capillaries • small blood vessels • supply nourishment to the cells around it aka germinal matrix
Germinal Matrix • Cuticle • Cortex • Medulla
Sebacous glands • produce sebum/oil
Acid Mantle • protects the cuticle or outer covering, of hair fiber, maintains the acid balance of hair and skin
Arrector Pili • muscle comes from cells in dermis that attach to the follicle just below the sebaceous gland.
Keratinization • process by whereby cells change their shape, dry out and form keratin protien. Once keratinized, the cells that form the hair fiber or strand are no longer alive
keratinization • http://www.youtube.com/watch?v=IAAt_MfIJ-Y
Amino Acids • read pg 183 at top
Stages of Hair Growth • anagen • catagen • telogen
Hairstructure & Behavior • heredity • enviroment • products or appliances
Cuticle • http://www.youtube.com/watch?v=2R2KufsHwzE
Natural Hair Color • pg 186
7.2 Haircare • hair evaluation • common hair conditions • Common scalp conditions • hair loss
Hair evaluation • Determine type and density • texture - courseness • Read 187-188
Common Hair Conditions • Broken Hair • split ends • matting • nodules • canities • Ringed hair • Hypertrichosis • Monilethrix • Mechanical Damage
Hirsuities • Suit of hair...
Mechanical Damage • results from incorrect use of styling tools
dry dandruff disorder • pg 191
greasy or waxy dandruff disorder • pg 191
External Parasites • ringworm disease = tinea • ringworm of scalp - tinea capitus • honeycomb ringworm - tinea favosa • itch mite / scabies • head lice
Hair Loss • red • brown • black • blonde
lanugo • baby fine silky hair
vellus • short fine non pigmented
average daily loss • 40-100 strands per day
More alopecias • pg 195 finish out 7.2
watch scalp massage • aveda connect
Finish out chapter • alternate readings from chapter from class