Hair Structure

Hair is part of the _______________ system.

• integumentary

• limbic

• immune

• circulatory

A mature hair strand is divided into two parts:

• Hair root

• Hair Shaft

• Arrector Pili

• Hair structure

A tube-like depression or pocket in the skin or scalp that contains the hair root is called the __________________.

• Hair follicle

• Dermal papilla

• Hair bulb

• Arrector Pili

The hair _______________ is the lowest part of a hair strand.

• follicle

• bulb

• dermal papilla

• arecctor pili

The _________________ is a small, cone-shaped elevation located at the base of the hair follicle.

• hair bulb

• arrrector pili

• sebaceous glands

• dermal papilla

The small involuntary muscle in the base of the follicle is called ______________.

• dermal papilla

• arrector pili

• sebaceous glands

• hair bulb

Oil glands that are connected to the hair follicle and secret an oily substance to lubricate the skin are called _________________ glands.

• sebaceous

• arrector pili

• dermal papilla

• hair bulb

The outermost layer of the hair that serves as protection is called ______________.

• Cuticle

• Cortex

• Medulla

• Hair Shaft

The cuticle:

• Is responsible for creating the shine

• Consists of overlapping layers like shingles on a roof

• Protects the cortex layer

• Contains color pigment

Swelling the hair by applying substances such as haircolor raises the cuticle layer and opens the space between the scales, which allows liquids to penetrate into the cortex.

• True

• False