Hair Shaft
The study of hair
What is Trichology
The ability of the hair to absorb moisture
What is porosity
Sets the direction of the hair shaft, tube-like pocket encases the hair root
What is the follicle
Fits over the papilla, club-shaped
What is the bulb
The muscle that pushes out old & new hair, causes goosebumps to warm us up by holding body heat in
What is the arrector pili muscle
The technical term for non pigmented hair or grey hair
What is canities
The ability of hair to stretch and return
What is elasticity
Blood vessels, cone-shaped elevation, if destroyed hair will not grow back
What is the dermal papilla
Growth phase
What is Anagen
Secretes sebum, oil, gives shine to the hair
What is the sebaceous gland
To protect and adorn
What is the purpose of hair
Acts as a protective layer open and closes hair porosity
What is Cuticle
Dandruff, caused by the fungus Malassezia
What is pityriasis
Transitional phase
What is catagen
Neutral on the pH scale
What is water
fine, medium, coarse, the overall feel of the hair per strand
What is texture
90% of hairs strength, 2nd layer, bonds, pigment elasticity
What is cortex
Oily dandruff
What is pityriasis steatoids
Resting phase
What is telogen
Below 7 on the pH scale
What is Acidic
Numbers of hair per square inch
What is density
Innermost layer or pith, absent in very fine hair, innermost layer
What is medulla
Head lice, the parasite infects the hair and scalp
What is Pediculosis capitis
Absence of pigment, no melanin in the hair
What is Albino
Above 7 on the pH scale
What is Alkaline