Ch.10 Physiology And Histology Of Skin

Front 1

Apocrine glands

Back 1

Coiled structures attached to hair follicles found in the underarms and genital areas that secretes sweat

Front 2

Arrector pili muscle

Back 2

Small involuntary muscles in the base of the hair follicle that causes goose flesh when the appendix contract sometimes called goosebumps and papilla

Front 3

Barrier function

Back 3

Protective barrier of the epidermis the cornea and intercellular matrix protect the surface from irritation and dehydration

Front 4

Ceramids

Back 4

Glycolipid materials that are a natural part of the skin's intercellular matrix and barrier function

Front 5

Collagen

Back 5

Fibrous connective tissue made from protein found in the reticular layer of the dermis gives skin its firmness topically alarge long-chain molecule protein that lies on top of the skin and binds water derived from the placentas of cows or other sources

Front 6

Corneocytes

Back 6

Another name for the stratum corneum sell hard and waterproof protective keratinocytes he's dead protein cells are dried out and lack nuclei

Front 7

Dermal papillae

Back 7

Membranes of ridges and grooves that attach to the epidermis contains nerve endings and supplies nourishment through capillaries to skin and follicles

Front 8

Dermis

Back 8

Also known as the derma corium cutis or true skin support layer of connective tissue collagen and elastin below the epidermis

Front 9

Desmosomes

Back 9

The structures that assists and holding cells together intercellular connection is made of proteins

Front 10

Eccrine glands

Back 10

Sweat glands found all over the body with openings on the skin surface through pores not attached to hair follicles secretion do not produce an offensive odor

Front 11

Elastin

Back 11

Protein fiber found in the dermis gives skin its elasticity and firmness

Front 12

Epidermal growth factor

Back 12

Abbreviated EGF stimulate cells to reproduce and heal

Front 13

Epidermis

Back 13

Outermost layer of skin off in protective layer with many cells mechanisms and nerve endings it is made up of five layers stratum corneum stratum lucidum stratum granulosum stratum spinosum and stratum germinativum

Front 14

Eumelanin

Back 14

I type of melanin that is dark brown to black and color people with dark colored skin mostly produced eumelanin there at these are two types of melanin the other type pheomelanin

Front 15

Hyaluronic acid

Back 15

Hydrating fluids found in the skin hydrophilic agent with water binding properties

Front 16

Leukocytes

Back 16

White blood cells that have enzymes to digest and kill bacteria and parasites these white blood cells also respond to allergies

Front 17

Papillary layer

Back 17

Top layer of the dermis next to the epidermis

Front 18

Reticular layer

Back 18

Deeper layer of the dermis that supplies the skin with oxygen and nutrients contains fat cells blood vessels sweat glands hair follicles lymph vessels arrector pili muscles oil glands and nerve endings

Front 19

Sebaceous glands

Back 19

Oil glands

Front 20

Stratum corneum

Back 20

Also known as horny layer outermost layer of the epidermis composed of corneocytes

Front 21

Stratum germinativum

Back 21

Also known as basal cell layer active layer of the epidermis above the papillary layer of the dermis cell mitosis takes place here that produces new epidermal skin cells and is responsible for growth

Front 22

Stratum granulosum

Back 22

Also known as granular layer layer of the epidermis composed of cells filled with keratin that resemble granules place cells shed from the stratum corneum

Front 23

Stratum lucidum

Back 23

Clear transparent layer of the epidermis under the stratum corneum thickest on the palms and hands and soles of feet

Front 24

Stratum spinosum

Back 24

Also known as spiny layer layer of the epidermis above the stratum germinativum layer containing decimo sons the intercellular connections made of protein

Front 25

Subcutaneous layer

Back 25

Also known as hypodermis subcutaneous adipose fat tissue located beneath the dermis a protective cushion and energy storage for the body

Front 26

Sudoriferous glands

Back 26

Sweat glands

Front 27

Trans epidermal water loss

Back 27

Water loss caused by evaporation on the skin surface

Front 28

UVA radiation

Back 28

Also known as aging rays longer wavelengths ranging between 3:20 to 400 animators that penetrate deeper on the skin then UVB causes genetic damage and cell death UVA contributes up to 95% of the sun's ultraviolet radiation

Front 29

UVB radiation

Back 29

Also known as burning rays UVB wavelength range between 290 to 320 nanometers UVB rays have shorter burning wavelength that are stronger and more damaging than UVA rays UVB causes burning of the skin as well as tanning skin aging and cancer