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Integ. Syst.

Chap. 5

The Integumentary system contains: Skin,hair, nails,sweat glands & oil glands
What are the 5 purposes of the skin? protect the body, regulate body temp., sensory receptors,Absorb vitamins, Provide elimination of waste through sweat
How does the skin regulate body temperature? prevents excess loss of heat to keep our organs and us warm. Sweat glands release fluid which cools body temp when it evaporates.
How does the skin protect the body? Protects from the entrance of microorganisms. protects against injury to underlying bony structures.
How do sensory receptors in the skin work? They sense touch,pressure, pain and temperature.
How does the body eliminate waste through the skin? Through perspiration, water, sodium and fat substances.
Which Vitamin is essential for bone growth? Vitamin D which is absorbed through the skin from the sun.
The study of the skin is called dermatology
The physician who specializes in the stucy of the skin is called a dermatologist
The Outer Layer of the skin is what and contains what? Epidermis- contains no blood or nerves
What is another name for Dermis? Corium
What does the Corium contain? tissue,capillaries,sweat & oil glands, nerve endings and Hair follicles.
What is the Subcutaneous layer made up of? adipose(fatty)tissue, many nerves,vessels, sweat glands&hair roots.
What role does the Subcutaneous layer play in our body? connects skin to muscles.Serves as insulation to the body&protects deeper tissue.
Where is the Hair root embedded? in the hair Follicle
What colors does Melanin provide? Brown or Black
What is the part of the hair we see? Hair shaft
Melanin+Iron Red hair
Absence of Melanin White hair
Reduced Melanin Grey hair
What is the purpose of the nail? to provide protection to fingertips and toes.
What is the crescent-shaped white area at the base of a nail? Lunula
What is the Cuticle? fold of skin at the base of the nail
What is the nail body also known as? the Main Portion of the nail
What glands are deep within the Dermis? Sudoriferous(sweat,perspiration) & sebaceous glands
Where are the many glands located? palms of hands,soles of feet, forehead and armpit.
Does sweat itself smell bad? NO, it is odorless. It only smells when mixed with BACTERIA
If you have body odor what type of soap should you use? Antibacterial
What is another name for Sebaceous glands? oil glands
What to Sebaceous glands secrete? Sebum
Where is Sebum secreted? up the hair shaft,lubricating the hair keeping the skin soft& moist.
If the Sebaceous gland becomes blocked(usually at the pore) what happens? you get a pimple or blackhead.
what does the Ceruminous gland produce? Cerumen, which lubricates the skin in the ear canal.
thin flakes of hardened epithelium shed from the epidermis Scales
A small brownish or flesh colored outgrowth of skin.Occurring frequently on the neck AKA Cutaneous papilloma skin tags or cutaneous papilloma
A sweat gland Sudoriferous gland
tiny structures w/in the epidermis that produce sweat, which carries waste products to the surface of the skin for excretion sweat gland AKA Sudoriferous gland
A circumscribed open sore or lesion of skin that is accompanied by inflammation. Ulcer
Small stalk-like growth that protrudes upward or outward from a mucous membrane surface, resembling a mushroom stalk. polyp
Small,pinpoint hemorrhages of the skin. Petechia
A small,solid,circumscribed elevation on the skin. Papule
Any fungal infection of the nails. Onchymycosis
A black or dark pigment that contributes color to the skin and helps filter UV light. (produced by melanocytes w/in the epidermis) Melanin
Cell responsible for producing melanin. Melanocyte
Typical lesion of acne vulgaris caused by accumulation of keratin & sebum w/in the opening of a hair follicle Comedeo Closed=whitehead Opened=blackhead
A small, flat discoloration of the skin that is neither raised or depressed Macule
A tear in the skin Laceration
The skin Integument
A substance(found in all cells)that is released in allergic inflammatory reactions. Histamine
A benign tumor that consists of a mass of blood vessels and has a reddish-purple color. Hemangioma
A crack-like sore or groove in the skin or mucous membrane. Fissure
Localized pus-producing infection originating deep in a hair follicle. Furuncle AKA Boil
The tiny tube w/in the dermis that contains the root of a hair shaft. Hair Follicle
The layer of skin immediately beneath the epidermis. Dermis AKA Corium
Fatty tissue Adipose
Corium Dermis;the layer of skin immediately beneath the epidermis
A physician who specializes in the treatment of diseases&disorders of the skin Dermatologist.
A diffuse ACUTE infection of the skin & subcutaneous tissue,characterized by localized heat, deep redness, pain,& swelling Cellulitis
Lunula crescent-shaped pale area at the base of the fingernail or toenail
Infestation with Lice Pediculosis
Itching Pruritus
Oily secretions of the sebaceous glands Sebum
The outermost layer of the skin Epidermis
Linear tears in the dermis resulting from overstretching from rapid growth. AKA Stria Stretch marks or Stria
fatty layer of tissue located beneath the dermis Subcutaneous tissue
clear,watery fluid produced by sweat/Sudoriferous glands;AKA perspiration Sweat
A scraping or rubbing away of skin or mucous membrane as a result of friction to the area. Abrasion
A localized collection of pus in any party of the body. Abscess
Partial or complete loss of hair. May be due to aging,reaction to meds,endocrine disorder or skin disease. Alopecia
small,thin-walled skin lesion containing clear fluid AKA vesicle Blister
bluish-black discoloration of an area. AKA bruise Ecchymosis
Ear wax Cerumen
non-invasive treatment using sub freezing temps. to freeze & destroy the tissue. Coolants such as liq. nitrogen are used in the metal probe Cryosurgery
process of scraping material from the wall of a cavity or surface for the purpose of removing abnormal tissue or unwanted material. Curettage
Removal of debris,foreign objects, & damaged necrotic tissue from a wound in order to prevent infection and to promote healing. Debridement
inflammation of the skin Dermatitis
A technique that uses an electrical spark to burn and destroy tissue;used primarily for the removal of surface lesions. Electrodessication
The tissue that covers the internal and external surfaces of the body. Epithelium
Redness of the skin due to capillary dilation (ex:sunburn,nervous blushing) Erythema
An abnormal increase in the number of red blood cells; polycythemia vera Erythremia
inflammation,sore,or ulcer in the skin over a bony prominence of the body. Bed Sore
Tissue death due to the loss of adequate blood supply, invasion of bacteria, & subsequent decay of enzymes (esp. proteins) - producing an offensive odor. Gangrene
An acute viral infection characterized by painful vesicular eruptions on the skin following along the nerve pathways of underlying spinal or cranial nerves. Herpes Zoster AKA Shingles
Contagious superficial skin infection characterized by serous vesicles & pustules filled with millions of staphylococcus or streptococcus bacteria, usually forming on face. Impetigo
Vascular malignant lesions that begin as soft purple-brown nodules or plaques on the face and oral cavity but can occur anywhere on the body & gradually spread throughout the skin. Only common to AIDS patients. Kaposi's Sarcoma
white,hard, thickened patches firmly attached to the mucous membrane on the mouth, vulva, or penis. Leukoplakia
An enlarged,irregularly shaped, and elevated scar that forms due to the presence of large amounts of COLLAGEN during the formation of a scar. Keloid
Malignant skin tumor originating from melanocytes in preexisting nevi(moles),freckles,or skin w/pigment;darkly pigmented cancerous tumor. Malignant Melanoma *asymmetry-flat&elevated parts *borders-leakage across borders or margins irregularly shaped
Onychomycosis fungal infection of the nails
A common noninfectious chronic disorder of the skin manifested by silvery-white scales covering round,raised, reddened plaques producing itching(Pruritus) Psoriasis
Highly contagious parasitic infestation caused by the "human itch mite{" resulting in a rash,pruritus,and slightly raised thread-like skin lines. Scabies
Chronic inflammatory skin disease that mainy affects the skin of the middle third of the face. the individual had persistent redness over the areas of the face, nose and cheeks. Rosacea
Created by: First Institute