Waxing / Hair Removal Flashcards
Fundamentals and Importance of Hair Removal and Waxing. Identifying model of hair follicle and its growth cycle.
Which scientific term studies hair and its diseases?
Trichology
A mass of epidermal cells forms a small tube/canal into the dermis called a…
hair follicle
Which unit contains the hair follicle and its appendages?
the Pilosebaceous Unit
What canal produces the follicle and hair matrix where cell mitosis occurs?
Follicular Canal
What anchors hair to skin cells?
the Hair Root
What thick club-shaped structure is made from epithelial cells surrounding the papilla that contains dividing cells from mitosis for hair to grow? (Hint: lowest part of the hair follicle)
the Hair Bulb
What cone-shaped structure in elevation contains capillaries and nerves which are necessary for hair growth and nourishment?
the Hair Papilla
Identify the part of the hair structure that is located above the surface of the skin and is made up of 3 layers
the Hair Shaft
List the 3 layers of the HAIR SHAFT from bottom to top and give a brief of their role
B) Cuticle: outermost layer (hard keratin formation)
M) Cortex: middle layer (hard keratin)
T) Medulla: center and innermost layer (soft keratin)
FUN FACT: not everyone has a…
Medulla
What gland secretes sebum (waxy substance) that lubricates the skin and hair? (Hint: keeps skin supple and waterproof from external factors)
the Sebaceous Gland
Which muscle contracts when in contact with the cold or other stimuli that forces hair follicles to stand erect? (Hint: GOOSEBUMPS & WARMTH)
the Arrector Pili
Identify the difference between vellus and lanugo hair?
Lanugo hair is only found on babies and sheds. Vellus hair is not soft.
Identify the difference between terminal and vellus hair?
Terminal hair grows longer, coarser, and darker on the head, brows, genitals, and legs. Vellus hairs are found on forearms, cheeks, lips, back of palms, and back of ears.
FUN FACT: which process creates terminal hairs?
Puberty/Hormone Changes
Hair growth CYCLES can be determined by multiple factors. Identify a few of those listed factors.
AGE, GENETICS, HORMONES, HEALTH, Rx DRUGS
What is the first phase of the hair growth cycle (HGC) that produces new hair and keratinized cells?
Anagen
The second phase of the (HGC) where mitosis ceases cell production and hair detaches from the dermal papilla is called…
Catagen
The (HGC) ends with the third and final phase where club hair moves up the follicle and gets ready to shed while at its full erect length.
Telogen
!! Mnemonic Device to remember the 3 HGC !!
A (Anagen) C (Catagen) T (Telogen)
ACT
List several factors that determine hair GROWTH in people?
GENETICS, ETHNICITY, HORMONAL INFLUENCES
What is the term for excessive growth of terminal hair in areas of the body that normally only grow vellus hair called? (Hint: NOT stimulated by male androgens)
Hypertrichosis
What is the term for excessive hair growth on the face, chest, underarms, and groin? (Hint: stimulated by male androgens and specifically in WOMEN)
Hirsutism
A term that defines pathological like conditions caused by viruses and bacteria
Disease
A term that describes an abnormality of function or a genetically inherited malfunction
Disorder