Vocabulary
Hair Root Structure
Hair Shaft Structure
Chemical Composition of hair 1
Chemical composition of hair 2
100

The study of hair, including its diseases and care.

What is Trichology?

100

found below the skin and consists of the hair follicle, hair Bulb, and dermal papilla.

What is hair's living portion?

100

consists of hair cuticle, Cortex, and medulla

What is hair shaft?

100

process by which newly formed cells in the hair Bulb mature, fill with keratin, move upward, lose their nucleus and die.

What is keratinization?

100

made up of millions of polypeptide chains, which are cross-linked like a ladder’s rungs.

What is cortex side bonds?

200

is a tube like structure in the skin or scalp that surrounds the hair root and anchors the hair in the skin.

What is hair Follicle?

200

A strand of human hair has two parts.

What is hair root and hair shaft?

200

Always found in beard hair.

What is Medulla?

200

Are the Elements that make up the human hair.

What is Carbon, Oxygen, Hydrogen, Nitrogen, and sulfur?

200
Weak Physical bond broken by changes in pH

What are salt bonds?

300

long chain of amino acids linked by peptide bonds.

What is polypeptide chains?

300

located below the epidermis.

What is hair root?

300
responsible for the hair's strength, elasticity, and color.

What is cortex?

300

chemical bond that joins amino acids to each other, end to end.

What is peptide bonds?

300

refers to the amount of movement or shape of the hair strand.

What is wave patterns?

400

is located at the base of the follicle.

What is hair Bulb?

400

projects above the epidermis.

What is hair shaft?

400
The hair's outermost layer.

What is hair cuticle?

400

Link together end to end and are the protein building blocks that comprise hair

What is Amino Acids?

400
Weak Physical bond that is easily broken by water.

What is hydrogen bond?

500

Is a cone shaped elevation at the base of the hair Bulb.

What is dermal papilla?

500

consists of the hair follicle, hair Bulb, dermal papilla, arrector pili muscle, and the sebaceous glands.

What is hair root structure?

500

known as the hair's pith or core. Not all hair types have it.

What is a medulla?
500
The major elements that make up the human hair are referred to this as.

What is COHN'S Elements?

500

Found in the cortex

What is melanin?

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