Flashcards in Chapter 10 Deck (55)
Protective barrier of the epidermis; the corneum and intercellular matrix protect the surface from irritation and dehydration.
Lipid substances between corneum cells that protect the cells from water loss and irritation
Abbreviated EGF; stimulates cells to reproduce and heal.
epidermal growth factor
Cells that stimulate cells, collagen, and amino acids that form proteins
Small, involuntary muscles in the base of the hair follicle that cause goose flesh when the appendage contracts, sometimes called goose bumps and papillae.
arrector pili muscle
Guard cells of the immune system that sense unrecognized foreign invaders, such as bacteria, and then process these antigens for removal through the lymph system.
Langerhans immune cells
Oil that provides protection for the epidermis from external factors and lubricates both the skin and hair.
Fibrous protein of cells that is also the principal component of skin, hair, and nails; provides resiliency and protection.
Outermost layer of skin; a thin, 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.
Chronic condition that appears primarily on the cheeks and nose and is characterized by flushing (redness), telangiectasis (distended or dilated surface blood vessels), and, in some cases, the formation of papules and pustules.
Capillaries that have been damaged and are now larger, or distended blood vessels; commonly called couperose skin.
Coiled structures attached to hair follicles found in the underarm and genital areas that secrete sweat.
Sweat glands found all over the body with openings on the skin’s surface through pores; not attached to hair follicles, secretions do not produce an offensive odor.
Also called derma, corium, cutis, or true skin; support layer of connective tissue, collagen, and elastin below the epidermis.
Also known as hypodermis; subcutaneous adipose (fat) tissue located beneath the dermis; a protective cushion and energy storage for the body.
Deeper layer of the dermis containing proteins, collagen, and elastin that give the skin its strength and elasticity.
Top layer of the dermis next to the epidermis.
Also known as horny layer; outermost layer of the epidermis, composed of corneocytes
There are 15 to 20 layers in this layer
Clear, transparent layer of the epidermis under the stratum corneum; thickest on the palms of hands and soles of feet.
Also known as granular layer; layer of the epidermis composed of cells filled with keratin that resemble granules; replace cells shed from the stratum corneum.
Also known as spiny layer; layer of the epidermis above the stratum germinativum layer containing desmosomes, the intercellular connections made of proteins.
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.
White blood cells that have enzymes to digest and kill bacteria and parasites. These white blood cells also respond to allergies.
Protein fiber found in the dermis; gives skin its elasticity and firmness.
Glycolipid materials that are a natural part of skin’s intercellular matrix and barrier function.
Caused by an elevation in blood sugar, glycation is the binding of a protein molecule to a glucose molecule resulting in the formation of damaged, nonfunctioning structures, known as Advanced Glycation End products( a.k.a. AGES). Glycation alters protein structures and decreases biological activity.
The protective barrier made up of sebum, lipids, sweat, and water.
Tube like openings for sweat glands on epidermis
Fatty tissue found below the dermis that gives smoothness and contour to the body., contains fat for use of energy, and also acts as a protective cushion for the outer skin.