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Cosmetology PM EVIT > Properties Of Hair And Scalp > Flashcards

Properties Of Hair And Scalp Flashcards

Learn these facts for tomorrows big test (61 cards)

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1
Q

Hair, skin, and nails are all part of the _________system.

A

Integumentary

Hint: hair, skin and nails all have I in them.

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2
Q

What is hair’s 2 purposes?

A
  1. Protection.
  2. Adorment this is where we come in :)
    Hint: hair has an A and Purposes has a P
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3
Q

The study of hair, its diseases and care, is called…

A

Trichology (Greek Origin)

Hint: We all TRI to take good care of our hair

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4
Q

What are the 2 parts of the hair?

A
  1. Hair root (located below the surface of the skin)

2. Hair shaft (projects above the skin-made up of nonliving fiber, made up of keratinized protein.

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5
Q

The hair shaft projects above the skin-made up of nonliving ______?

A

Fiber

Hint: shaft has an F in it

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6
Q

The hair shaft projects above the skin-made up of nonliving fiber which is made up of ______?

A

Keratinized protein

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7
Q

What are the 5 parts to the hair root?

A
  1. Hair follicle
  2. Hair bulb
  3. Dermal Papilla
  4. Arrector pili muscle
  5. Sebaceous glands
    Hint: remember shade but SHHAD
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8
Q

What is a hair follicle?

A

Is the tubelike depression in the skin or scalp that contains the hair root.
Hint: follicle sounds like fall and tubes fall over

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9
Q

What is hair follicle distribution

A

All over the body, except for the palms and soles of your feet.
Hint: cover your body but you can’t see your palms or soles unless you look under them

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10
Q

Hair follicles grow in which direction?

A

Downward

Hint: fall, downward

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11
Q

Follicles grow downward from the epidermis into the _____ where it surrounds the dermal papilla.

A

Dermis

Hint: follicles fall downward which has two d’s one can count for downward and the other for dermis

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12
Q

What is a hair bulb?

A

Part of the hair strand

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13
Q

What shape is the hair bulb?

A

Club and forms at the bottom of the strand

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14
Q

What does the hair bulb cover?

A

The dermal papilla

Hint: bulb has two b’s and papilla has two p’s

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15
Q

What is the dermal papilla?

A

Is a small, con-shaped elevation at the base of the hair follicle that fits in the hair bulb.

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16
Q

What does the dermal papilla contain?

A

The blood and nerve supply to help things grow.

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17
Q

What is the Arrector pili muscle?

A

Are involuntary muscle fibers which cause the hair to stand up. (Goose bumps)
Think Arrector 🐤 Aflack which could be a goose hense goose bumps

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18
Q

What are sebaceous glands?

A

Oil glands connected to the hair follicles.

They have a fatty, oily substance that covers the hair and skin.

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19
Q

What is another word for fatty and oily substances?

A

Sebrum

Hint: think sebaceous Sebrum both have seb

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20
Q

How many main structures are there to the hair shaft?

A 
3 main structures
1. Cuticle
2. Cortex
3. Medulla
Hint: think cuting hair corrects me
Cuticle cortex medulla
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21
Q

What is the cuticle?

A

Outermost layer. Protects the inner layers and has transparent, scale like cells.
Hint: look at your fingernails

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22
Q

Each cell/scale is attached to the _____.

A

Cortex

Hint: cell core, cortex

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23
Q

The cortex creates what?

A

Shine and smoothness

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24
Q

What is the cortex?

A

The middle layer. Made up of a fibrous core, elongated with cells that contain melanin.
Hint: c is in the middle of A and B

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25
What is medulla
``` Inner layer (pith). Formed by round cells. Hair may be missing this layer for natural blondes or baby hair. Hint: medulla would be like the middle ```
26
Hair is composed of a ____ and grows from ____ that oringinate in the hair follicle.
Protein | Cells
27
Keratinization is when new cells ____?
Mature | Hint: think of Keratinization as the K standing for kid. When we grow up we mature
28
Keratinization cells are filled with _____, move up, lose their molecules, and ____?
Keratin | Die
29
The hair is ____% protein and made up of how many amino acids?
90% 5 amino acids Hint: think hairs for 5 letter 5 amino acids
30
COHNS
``` Carbon Oxygen Hydrogen Nitrogen Sulfate ```
31
How many total acids does the body have?
20 amino acids | Hint: 2 T's in total
32
How many acids can be naturally produced?
11 amino acids | Hint: 2 I'd in naturally like 11
33
How many amino acids involve the diet of humans?
9 amino acids | Hint: amino acid has 9 letters
34
Amino acids build ____ and are linked like pop beads
Proteins
35
A chemical bond that links 2 amino acids together is a ______.
Peptide bond | End bond
36
What are polypeptide chains?
A long chain of amino acids linked by peptide bonds. When then intertwine they are known as a helix.
37
How many type of side bonds are there?
``` 3 types 1.Hydrogen bond 2. Disulfide bond 3. Salt bond Hint: hyper disfunctional Santa's Lol give me a break lol it's late. ```
38
What is a hydrogen bond?
A weak bond that can easily break from water or heat, but can reform when the hair is cooled or dried. Hint: hydro water H equals heat
39
What is a salt bond?
Temporary side bonds between adjacent polypeptide chains. They are weak. Hint: salt goes with pepper like polypeptide
40
What is a disulfide bond?
Chemical bonds that join sulfur atoms of neighboring amino acids. Can only be broken with chemicals Hint: disulfide, dislocate like a broken bone
41
What is hair pigment?
All natural hair color which is the result of pigment in the cortex.
42
What is melanin?
Tiny grains of pigment that give the hair its color.
43
What are the two types of melanin?
1. Eumelanin 2. Phomelanin Hint: think of PHEW but PHEU
44
What is Eumelanin?
Brown and black to hair | Hint: think of the two e's as two b's.
45
What is phomelanin?
Natural reds and blondes. | Hint: pho, fake colors
46
What are wave patterns?
``` The shape of the hair strand. Striaght Wavy Curly Extremely curly ```
47
What is hair texture?
Thickness or thinnest of each individual strand of hair Course- largest diameter Medium- most common Fine- smallest diameter very fragile Hint: thickness and thinnest both have T's like texture
48
What is hair density?
``` The individual strands of hair per square on the scalp. Low- thin hair Medium- average hair High- dense hair Hint: think of the D as a square ```
49
What is hair porosity?
``` The hairs ability to absorb moisture Low- resistant Medium- normal High- corse Hint: porosity, like pouring rain, moisture ```
50
What is hair elasticity?
Hairs ability to stretch and return Normal will stretch to about half its length and return. Low will break
51
What are growth patterns?
How the hair grows from the scalp.
52
What is hair stream?
All the hair flowing in the same direction
53
What is whorl?
When the hair grows in a circular pattern. | Hint: whirlpool
54
What is a cowlick?
Hair stands straight up, like a tiff of hair that can be found anywhere.
55
What is dry hair and scalp?
Caused by inactive sebaceous glands and aggravated by dryness
56
What is oily hair and scalp caused by?
Overactive sebaceous glands and improper shampooing.
57
When does hair growth repeat?
Every 4-5 years
58
What are the 2 types of hair growth?
1. Vellus (lanugo) 2. Terminal Hint: think of VT as in Very tired of Terms which people grow tired of.
59
What is Vellus hair
Short, fine hair | Hint: L's are tall u and s are short
60
What is terminal hair?
Found on scalp, legs, arms, and chest for men
61
What are the stages of growth?
``` Anagen- growth Catagen- transition phase Telegen- final resting phase Hint: ACT Ants Catch Telephones ```

Cosmetology PM EVIT (2 decks)

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