The tube-like depression or pocket in the skin or scalp that contains the hair root is the ______.
The process whereby living cells mature and begin their journey up the hair shaft is ______.
carbon, oxygen, hydrogen, nitrogen, & sulfur
What are the five main elements that make up the chemical composition of human hair?
Which type of melanin provides natural colors ranging from red and ginger to yellow and blond tones?
A detangling rinse
To help minimize tangles in extremely curly hair when washing, you should use ______.
more alkaline solutions
Compared to hair with high porosity, chemical series performed on hair with low porosity require ______.
The most frequently encountered fungal infection resulting from hair services is ______.
The oil glands in the skin that are connected to the hair follicles are the _______ glands.
What is the naturally occurring fungus that causes the symptoms of dandruff when it grows out of control?
What is a highly contagious skin disease caused by a parasite called a mite that burrows under the skin?
What is the long, coarse, pigmented hair found on the scalp, legs, arms, and bodies of males and females?
What is an autoimmune disorder that causes affected hair follicles to be mistakenly attacked by a person's own immune system?
"androgenetic alopecia" ; hair loss characterized by miniaturization of terminal hair that is converted to vellus hair; in men it's (male pattern baldness)
Inflammation of the subcutaneous tissue caused by staphylococci; similar to a furuncle but larger.
The brief transition period between the growth and resting phases of a hair follicle. It signals the end of the growth phase.
Carbon, Oxygen, Hydrogen, Nitrogen, and Sulfur
Name the COHNS elements. (The 5 elements that make up human hair, skin, tissue, and nails.
Strong chemical side bond that joins the sulfur atoms of two neighboring cysteine amino acids to create one cystine, which joins together two polypeptide strands like rungs on a ladder.
Boil; acute, localized bacterial infection of the hair follicle that produces constant pain.
Outermost layer of hair; consisting of a single, overlapping layer of transparent, scale-like cells that look like shingles on a roof.
Hair flowing in the same direction, resulting from follicles sloping in the same direction.
Easily absorbs moisture; in chemistry terms, capable of combining with or attracting water (water-loving)
"hirsuties" ; condition of abnormal growth of hair, characterized by the growth of terminal hair in areas of the body that normally grow only vellum hair.
Process by which newly formed cells in the hair bulb mature, fill with keratin, move upward, lose their nucleus, and die.
The bonds created when disulfide bonds are broken by hydroxide chemical hair relaxers after the relaxer is rinsed from the hair.
"end bond" ; chemical bond that joins amino acids to each other, end to end to form a polypeptide chain.
Severe case of dandruff characterized by an accumulation of greasy or waxy scales mixed with sebum, that stick to the scalp in crusts.
Variety of canities characterized by alternating bands of gray and pigmented hair throughout the length of the hair strand.
Bonds that cross-link the polypeptide chains together and are responsible for the extreme strength and elasticity of human hair.
"resting phase" ; the final phase in their hair cycle that lasts until the fully grown hair is shed.
Long, coarse, pigmented hair found on the scalp, legs, arms and bodies of males and females.
fungal infection characterized by dry, sulfur-yellow, cup-like crusts on the scalp called scutula.