Which of the following is NOT a function of skin?
absorption
Which layer of the skin contains lots of fat?
subcutaneous layer
Which layer of the skin contains connective tissue and lots of collagen?
dermis
From superficial to deep, the layers of the skin are
epidermis, dermis, subcutaneous layer
Which layer of the skin contains keratin?
epidermis
Which of the following is NOT true of the epidermis?
it is highly vascularized
Keratin makes epidermal cells
tough and waterproof
Stratified squamous cells make up the
epidermis
Squamous cells are
flat and scale-like
Epidermal cells accumulate a hard protein called _______ in their cytoplasm
keratin
A(n) __________ makes the pigment that gives the skin its color.
melanocyte
People who cannot form melanin suffer from
albinism
________ is the pigment that gives skin color.
melanin
Melanin protects the skin by
absorbing UV radiation
Which of the following are NOT found in the dermis?
keratinocytes
_______ fibers act like glue to hold the skin together.
collagen
An adipocyte is
a fat cell
Which of the following is NOT true of the subcutaneous layer?
it contain keratinocytes
Fat cells are called
adipocytes
Hairs grow in tubes called
hair follicles
The color of hair is caused by
melanin
Hair cells are filled with the hard protein
keratin
The hardness of a nail comes from
keratin
The nail plate rests on the
nail bed
The _____ is a narrow band of epidermis that connects the nail to the finger
Cuticle
Sebum is a(n)
lipid(oil)
A _______ gland produces sebum.
sebaceous
Sebaceous glands are closely associated with
hair follicles
Sebum functions to
lubricate the skin
A(n) _______ sweat gland is activated by elevated body temperatures and is active throughout your lifetime.
eccrine
The opening of a sweat gland is a(n)
pore
A(n) _______ sweat gland is activated during puberty and secretes products that are broken down by bacteria creating odor.
apocrine
Sweat functions to
cool the body
combining form that means: \n sebum
seb/o
What does lute/o mean?
yellow
What does onych/o mean?
nail
ombining form that means: \n to heat or to burn (verb)
cauter/o
combining form that means: \n burn or burning (noun)
caus/o
What does xanth/o mean?
yellow
What does kerat/o mean?
hard
What does py/o mean?
pus
What does melan/o mean?
black
What does lip/o mean?
fat
combining form that means: \n wrinkle
rhytid/o
What does derm/o mean?
skin
What is the combining form that means: \n plant
phyt/o
What is the combining form that means: \n red
eythr/o
What does ungu/o mean?
nail
What does pil/o mean?
hair follicle
What does diaphor/o mean?
profuse sweating
What does dermat/o mean?
skin
What does anthrac/o mean?
black
What is the combining form that means: \n gray
Poli/o
What does albin/o mean?
white
What does cutane/o mean?
skin
combining form that means: \n dry or scaly
ichthy/o
What idoes erythemat/o mean?
redness
What does hidr/o mean?
sweat
What does trich/o mean?
hair
What does erythem/o mean?
redness
combining form that means: \n green
chlor/o
What does leuk/o mean?
white
What does jaund/o mean?
yellow
combining form that means: \n blue
cyan/o
What does xer/o mean?
dry
combining form that means: \n fungus
myc/o
combining form that means: \n tawny
cirrh/o
What does squam/o mean?
scale-like
What does adip/o mean?
fat
combining form that means: \n rosy
eosin/o
A burn causing epidermal and dermal lesions, erythema, blisters, and hyperesthesia is a
second-degree burn
Deep, open sore on the skin or mucous membranes.
ulcer
Thickened and rough lesion of the epidermis; associated with aging or skin damage.
keratosis
A scar
cicatrix
Chronic papular and pustular eruption of the skin with increased production of sebum.
acne
Contagious, parasitic infection of the skin with intense pruritus commonly forming around the groin, nipples and skin between the fingers
scabies
Groove or crack-like sore.
fissure
Small, pinpoint hemorrhage.
petechia
Small (less than 1 cm in diameter), solid elevation of the skin.
papule
Cancerous growth composed of melanocytes.
malignant melanoma
Epidermal growth (wart) caused by a virus.
verruca
Flat, pigmented lesion measuring less than 1 cm in diameter.
macuele
Pigmented lesion of the skin (mole)
nevus
A(n) ________ is an area of abnormal tissue anywhere on or in the body.
lesion
White, thickened patches on mucous membrane tissue of the tongue or cheek (evolves to squamous cell carcinoma).
leukoplakia
Pruritus
itching
Solid, round or oval elevated lesion 1 cm or more in diameter.
nodule
Death of tissue associated with loss of blood supply.
gangrene
Bluish-purplish mark (bruise) on the skin.
ecchymosis
Abnormal condition of excessive keratin
ketosis
Chronic progressive disease of the skin and internal organs with hardening and shrinking of connective tissue.
scleroderma
Infection of the skin caused by a fungus.
tinea
Loss of pigment (depigmentation) in areas of the skin
vitiligo
Acute allergic reaction in which red, round wheals develop on the skin.
uritcaria
Chronic, recurrent dermatosis marked by itchy, scaly, red plaques covered by silvery gray scales.
psoriasis
Collection of dried serum and cellular debris.
crust
Malignant, vascular, neoplastic growth characterized by cutaneous nodules.
kaposi sarcoma
A burn causing superficial epidermal lesions, erythema, hyperesthesia, and no blisters is a
first-degree burn
Premalignant (precursor) lesions in people with sun-damaged skin.
actinic keratosis
Blackhead
open comedo