Integumentary System

Most superficial layer of skin; made of stratified squamous epithelium

The most abundant epidermal cells, they function mainly to produce keratin

Spidery-looking black cells that produce the brown-to-black pigments called melanin

Dense, irregular connective tissue layer of the skin deep to the epidermis

Protein that is responsible for the strength and water resistance of the skin surface

A protein that is a main constituent of connective tissue and give the dermis its flexible strength

A natural pigment that protects the cells in the skin from the hazardous effects of UV radiation by absorbing sunlight

Deep to the skin, this layer of adipose tissue provides insulation and padding

the most superficial layer of the epidermis consisting of dead cells

deepest epidermal layer made of a single row of cells that undergo rapid cell division

a layer of the epidermis that provides strength and flexibility to the skin, appears spiky, and is located just above the stratum basale

"Grainy layer" of cells that are actively producing keratin

a layer of the epidermis that is translucent due to keratin-filled dead skin cells found only in the thick skin of the fingers, palms, and soles

describes the dermis which has blood vessels

describes the epidermis which lacks blood supply

another name for hypodermis which means "above the flesh"

another name for hypodermis which means "below the skin"

area of thick hard skin

Anchoring junctions that prevent cells from being pulled apart

cells in the skin that detect pathogens and alert the immune system

sensory touch receptors also known as Merkel cells

organ system consisting of the skin, hair, nails, and some glands

the sunshine vitamin; requires UV light on skin to synthesize

pertaining to the skin

Latin for "covering"

outgrowth of the skin composed of compacted keratin strands

epidermal infoldings that each house a single hair

any small projection

actively dividing cells at the base of a hair or nail

tiny muscle fibers attached to the hair follicles that cause the hair to stand erect

oil

kiddle

outermost layer

protein that makes up hair and nails

an opaque white crescent at proximal end of nail

skin folds that overlap the border of a nail

cuticle

edge underneath the nail end; aka the quick

"spoon nail" sign of iron deficiency

indicated by lines on the nails

sweat glands

glands that produce watery sweat; found over most of the body

Sweat glands in the pubic and underarm areas that secrete thicker sweat, that produce odor when they come in contact with bacteria on the skin

modified sweat glands, located in external ear canal, secretes cerumen (earwax)

secrete sebum (oil) into the hair follicles