Properties of the Hair and Scalp

All of the following are macroscopic characteristics of hair except

• length

• texture

• color

• medulla pattern

• thickness

Identify the hair shaft.

The hair shaft is composed of what important protein?

• Cellulose 

• Chitin

• Peptidoglycan

• Keratin

The following medulla pattern is called

• fragmented 

• continuous

• interrupted

cuticle

• the tough outer covering of a hair composed of overlapping scales

• material that connects an indivisual or thing to a certain group

• a type of fibrous protein that makes up the majority of the cortex of a hair

• the centrel core of a hair fiber

What kind of medulla is this?

• Fragmented

• Continuous

• Interrupted/Intermittent

• There is no medulla - Absent

Which of the following is a primary function of the hair on the human scalp?

• Protection from UV radiation

• Facilitating sweat evaporation

• Enhancing hearing ability

• Aiding in digestion

What is the main structural component of hair that provides its strength and elasticity?

• Collagen

• Keratin

• Elastin

• Myosin

Which layer of the hair shaft is responsible for its color?

• Cuticle

• Cortex

• Medulla

• Follicle

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

• Producing sweat

• Secreting oil to lubricate hair

• Generating new hair cells

• Providing nutrients to hair