Hair Structure (Diagram labelling)

What is the relationship between hair root and hair follicle?

• The hair root is the part of the hair that is embedded in the hair follicle.

• The hair root is the outer layer of the hair.

• The hair follicle is responsible for hair color.

• The hair root and hair follicle are unrelated structures.

What is the innermost layer of the hair called?

• Cortex

• Cuticle

• Medulla

• Follicle

What is the role of the medulla in hair structure?

• The medulla contributes to the hair's overall strength and is often absent in fine hair.

• The medulla is responsible for the color of the hair.

• The medulla determines the hair's curl pattern.

• The medulla protects the hair from UV damage.

What is the function of the cuticle in hair structure?

• It provides color to the hair.

• It protects the inner layers of the hair and helps to prevent damage.

• It determines the thickness of the hair.

• It acts as a nutrient source for hair growth.

Which part of the hair structure is responsible for the hair's color and strength?

• Cortex

• Cuticle

• Medulla

• Follicle

Tags

NGSS.HS-LS3-2

How does the cortex contribute to the overall properties of hair?

• It provides moisture and shine to the hair.

• It contains fibrous proteins and melanin, which provide strength, elasticity, and color.

• It acts as a barrier against environmental damage.

• It regulates the temperature of the scalp.

What is the role of sebaceous glands in relation to hair?

• Sebaceous glands produce sweat to cool the scalp.

• Sebaceous glands secrete sebum, which lubricates the hair and scalp.

• Sebaceous glands help in hair growth by providing nutrients.

• Sebaceous glands protect hair from UV damage.

What factors can influence the health of the hair cortex?

• Genetics and hair color

• Nutrition, chemical treatments, and environmental exposure

• Hair length and styling techniques

• Frequency of hair washing

What is the significance of the hair bulb in hair growth?

• It provides nutrients to the hair shaft.

• It contains living cells that divide and grow to form the hair shaft.

• It protects the hair from damage.

• It determines the color of the hair.

Tags

NGSS.HS-LS1-4

What is the bulb-like structure at the base of the hair follicle called?

• Hair Bulb

• Hair Follicle

• Sebaceous Gland

• Dermal Papilla