Integumentary System- Chapter 3.2 

________ glands- the major sweat glands of the body, cover most of the body, open directly onto the skin.

________- dermal papillae that protrude from the surface up into the epidermis.

________- increases surface area for oxygen, diffusion from the dermis.

________- largest organ of the body that forms a physical barrier between the external environment and the internal environment that it serves to protect and maintain (skin)

________- prevents the normal production of melanin, and produces very little pigment in the skin, hair, and eyes.

________- located all over the body except for the palms of the hands and soles of the feet, produce an oily substance called sebum.

________- (dead) cells that shed from the stratum corneum.

________- produce melanin, a pigment that protects the body from harmful UV radiation.

Skin is also critically important in regulating body temperature, due to the extensive array of tiny capillaries and ________ that lie near the surface of the skin.

Process of sweating- the body eliminates chemical waste products, including urea, ________, and salts.

________- an oily and slightly waxy substance found on the skin, helps to keep the skin and hair softbut also contains chemicals that kill bacteria.

________ and naturally occurring oils in the skin assist in serving as a water barrier, and ________ prevents water from entering the body during bathing or swimming.

________- collagen and elastic fibers in this region have an irregular arrangement, it includes blood and lymphatic vessels, sweat and oil glands, involuntary muscles, hair follicles, and nerve endings.

________- produce keratin.

________ to sunlight causes melanocytes to produce more melanin.

________- clusters of melanocytes.

________- produces a large amount of keratin, die eventually due to lack of oxygen.

The ________ contains five layers of tissue.

________- located in the stratum basale, function as touch receptors.

________- clear layer of dead, keratinized cells.

________- primarily responsible for human skin color.

________- deepest layer with melanocytes.

________- the oldest layer of cells.

Epidermal ________- respond to the presence of foreign bacteria or viruses by initiating an immune system response.

a tough protein also found in hair and nails that adds structural strength, helps to protect the skin against damage

produce keratin

produce melanin, a pigment that protects the body from harmful UV radiation

primarily responsible for human skin color

clusters of melanocytes

the body eliminates chemical waste products, including urea, uric acid, and salts

distributed in the dermis over the entire body (sweat glands)

the major sweat glands of the body, cover most of the body, open directly onto the skin

located all over the body except for the palms of the hands and soles of the feet, produce an oily substance called sebum

an oily and slightly waxy substance found on the skin, helps to keep the skin and hair softbut also contains chemicals that kill bacteria

the surface epithelium of the skin, overlying the dermis

the oldest layer of cells

(dead) cells that shed from the stratum corneum

clear layer of dead, keratinized cells

increases surface area for oxygen, diffusion from the dermis

produces a large amount of keratin, die eventually due to lack of oxygen

cells begin forming desmosomes to attach to each other in layers

deepest layer with melanocytes

located in the stratum basale, function as touch receptors

respond to the presence of foreign bacteria or viruses by initiating an immune system response

thick layer of living tissue below the epidermis which forms the true skin, containing blood capillaries, nerve endings, sweat glands, hair follicles, and other structures

dermal papillae that protrude from the surface up into the epidermis

collagen and elastic fibers in this region have an irregular arrangement, it includes blood and lymphatic vessels, sweat and oil glands, involuntary muscles, hair follicles, and nerve endings

a storage repository for fat