Anatomy of the skin
The outermost protective layer of the skin and is the thinnest layer of the skin
What is the EPIDERMIS?
Also known as a blackhead, is a hair follicle filled with keratin and sebum
What is an OPEN COMEDO?
The three main layers of the hair shaft
What is the CUTICLE, CORTEX, and MEDULLA?
Refers to the shape of the hair strand and is described as straight, wavy, curly, and extremely curly
What is WAVE PATTERN?
The main two types of hair
What is VELLUS HAIR and TERMINAL HAIR?
The underlying, or inner, layer of the skin
What is the DERMIS?
Foul-smelling perspiration, usually noticeable in the armpits or on the feet
What is BROMHIDROSIS?
Full-grown human hair is divided into two parts
What is the HAIR ROOT and the HAIR SHAFT?
provides natural hair color that range from red and ginger to yellow and light blond tones
What is PHEOMELANIN?
The three phases of hair growth
What is ANAGEN, CATAGEN, and TELOGEN?
The protein fibers that give skin its strength, form, and flexibility
What are COLLAGEN and ELASTIN?
the inability to sweat
What is ANHIDROSIS?
small, cone-shaped elevation at the base of the hair follicle that fits into the hair bulb
What is the DERMAL PAPILLA?
weak, physical, cross-link side bond that is easily broken by water or heat
What is a HYDROGEN BOND?
75 to 100 hairs (starnds)
What is the normal average of hair loss per day?
The skin contains two types of duct glands which extract material from the blood to form new substances
What are the SUDORIFEROUS (SWEAT), and SEBACEOUS (OIL) GLANDS?
recurring viral infection that produces fever blisters or cold sores characterized by a single vesicle or group of vesicles with red, swollen bases
What is HERPES SIMPLEX 1?
Minute, involuntary muscle fiber in the skin attached to the base of the hair follicle
What is the ARRECTOR PILI?
Also known as a sulfur bond, is a strong covalent bond that is different from the physical side bond of hydrogen or salt bonds
What is a DISULFIDE BOND?
Also scientifically known as PSEUDOFOLLICULITIS BARBAE
What are razor bumps?
The deeper layer of the dermis, which supplies the skin with oxygen and nutrients
What is the RETICULAR LAYER?
Large, protruding pocket-like lesion filled with sebum
What are SEBACEOUS CYSTS?
The scientific study of hair, its disorders, and its care
What is TRICHOLOGY?
The essential elements in the human hair, also known as COHNS
What is carbon, oxygen, hydrogen, nitrogen, and sulfur?
Technical term for classic dandruff, characterized by scalp irritation, large flakes, and an itchy scalp
What is PITYRIASIS CAPITIS SIMPLEX