Retrieval Practice Session

• Hairdressing
• Further Education (Key Stage 5)

Retrieval Practice Session 

List three aspects from last session and give a brief account for each one

Anagen

Anagen: the hair is actively growing

Longest growing phase (affects 85% of hair at any one time).

Average growing phase lasts 1 to 6 years.

People with long hair have longer anagen cycle.

People with shorter anagen cycle will never have long hair.

Catagen

Catagen: the stage where changes occur

At the end of the anagen phase, hair growth stops.

This is the catagen phase, lasting roughly 2 weeks.

No new cells are produced in dermal papilla.

Hair follicle shrinks to one sixth of its original length

Telogen

The stage where the follicle ‘rests’ and no hair is growing.

Period of rest for hair follicle and dermal papilla.

Telogen lasts roughly 10 to 12 weeks.

About 10–15% of follicles in telogen at any one time.

Classifications 

Characteristics 

Straight 

Curly 

Very Curly 

Wavy 

Hair growth Patterns

Hair Condition

Density 

Hair texture 

The cuticle

Is made of transparent overlapping scales which protect the hair. Chemicals lift the cuticle to allow chemicals to penetrate the cortex. Heat also opens the cuticle.

The cuticle scales ideally should be closed from root to tip to give hair shine and lustre. Healthy hair reflects light and . Damaged cuticle scales will make the hair feel porous and appear dull. Key characteristics of the cuticle

In good condition they are water repellent

When damaged will allow more water to be absorbed into the hair

The Cortex

This is the section under the cuticle and is where most of the action happens.

Your natural colour is determined in the cortex and this is where artificial colouring mostly takes place.

It is this layer that has the bonds which hold your hair in place to determine if your hair is straight , curly or wavy.

Where hair is temporarily or chemically changed from straight to curly or curly to straight.

It is the main part of the hair that gives it its strength and elasticity.

The Medulla

This is the least interesting layer. It is the central part of the hair but is not always present

In a single strand it may fade in and out or be present the whole way through.

In thicker hair it appears more often than not

Which one is not a Characteristic?

1. Density
2. Curly Hair
3. Hair growth Patterns
4. Hair Texture

Anagen is...

1. Resting Phase
2. Growing and resting Phase
3. Active Growing Phase
4. Changing Phase

Telogen is...

1. Growing and resting Phase
2. Active Phase
3. Changing Stage
4. Resting Phase

Which part of the hair is the protective layer?

1. Cortex
2. Cuticle
3. Medulla
4. Cuticle and Cortex

Catagen is...

1. Resting Phase
2. Growing and resting Phase
3. Active Phase
4. Changing Phase

Principle of Colour Wheel

Opposite Colours neutralise unwanted tones 

Primary Colours

Red, Yellow, Blue 

Secondary Colours

Orange, Green, Violet

Warm Tones

Red, Yellow, Orange 

Cool Tones

Green, Blue, Violet

Which one is not a primary colour?

1. Red
2. Yellow
3. Blue
4. Violet

Which one is a cool tone?

1. Blue
2. Red
3. Yellow
4. Orange