The Integumentary System

Vocabulary flashcards covering the key structures, sublayers, and accessory organs of the integumentary system.

Integumentary system

Organ system made up of skin, hair, nails, and glands that protects the body.

Epidermis

Outer layer of skin consisting of stratified squamous epithelial tissue that continuously replaces itself.

Dermis

Thick layer of skin beneath the epidermis that provides strength and elasticity.

Subcutaneous layer (Superficial fascia)

Layer beneath the dermis that attaches the skin to underlying tissues.

Dermal papillae

Fingerlike extensions that project into the epidermis.

Keratin

Tough waterproofing protein made by epidermal cells.

Stratum corneum

Outer sublayer of the epidermis.

Stratum basale

Deepest sublayer of the epidermis.

Hair shaft

The part of the hair above the skin surface, consisting of dead cells.

Hair root

The part of the hair below the skin surface that, along with associated epithelial and connective tissue coverings, makes up the hair follicle.

Sebaceous glands

Glands that lubricate the hair and skin.

Sweat glands

Glands that help maintain body temperature.

Nails

Accessory structures that protect the ends of the fingers and toes.

Melanin

Substance that helps determine skin color.