Unit 5: integumentary system Flashcards
Mai layers of the epidermis (superficial to deep)
stratum corneum, lucidum, granulosum, spinosum, and basale
function fo melanocytes
produce melanin, protect from UV light
function of dendritic cells
phagocytize microbes, alert immune system
role of sweet glands in temperature regulation
open to cool, close to retain heat
hormone synthesized by skin
vitamin D
cause of acne
clogged follicles, overactive sebaceous glands
1st- degree burn
affect epidermis, redness, no blistering
herpes simplex virus symptom
fluid-filled blisters, tingling
cause of decubitus ulcers
pressure restricting blood flow
symptoms of psoriasis
red, itchy, scaly patches
ABCDE rule for melanoma
Asymmetry, Border, Color, Diameter, Evolving
what are the functions of the integumentary system?
protection, Sensation, Body temperature regulation, Vitamin D synthesis, and Excretion
what layers make up the skin?
Epidermis: Keratinized stratified squamous epithelium (avascular)
Dermis: Dense irregular connective tissue (vascular)
Hypodermis: Areolar and adipose tissue
how does the integumentary system regulate tempture?
Blood vessels dilate or constrict, eccrine sweat glands open and close, arrector pili muscle creates “Goosebumps”
acne causes
clogged hair follicles, overactive sebaceous glands
2nd-degree burn
damages dermis, blistering and scarring
cause of cold sores
herpes simplex virus
treatment for eczema
corticosteroid creams, antihistamines
freckles cause
increased melanin from UV-B exposure
psoriasis symptoms
red, itchy, scaly patches
fungal infection example
athlete’s foot, jock itch, ringworm
hives causes
allergens, insects, heat
skin cancer prevention
avoid sun midday, wear SPF 30+
basal cell carcinoma symptoms
shinny bump, red nodule
melanoma cause
cancer of melanocytes, sun exposure
decubitus ulcer cause
pressure restricting blood supply
vitiligo cause
melanocytes stop functioning
warts cause
HPV virus
cold sore symptoms
fluid-filled blisters, tingling
3rd-degree burn
full destruction, no pain
cause of fungal infections
warm, moist areas
treatment for warts
salicylic acid, freezing
vitamin D synthesis
skin + UV light = vitamin D
integumentary system function
protection, sensation, thermoregulation
epidermis layer mnemonic
come let’s get burned
hypodermis function
insulates, absorbs shock
dermis composition
collagen, elastic fibers, vascular
integumentary system. and immune system connection
skin as a barrier, immune cells
integumentary and skeletal system connection
vitamin D synthesis for calcium absorption
role of keratin
waterproofing, protection
dendritic cell function
phagocytize microbes, alert immune system
sebum function
lubricates skin, antimicrobial
vitamin D importance
calcium metabolism, immunity
hair follicle function
protects from sun, dust
function of melanocytes
produce melanin, protect from UV
turnover time of epideris
25-35 days
dermis vs. epidermis
dermis = vascular
epidermis = avascular
function or sweat glands
thermoregulation, waste removal
adipose tissue location
hypoder
common cause of bedsores (decubitus ulcers)
prolonged pressure on the skin over bony areas
symptoms of moles
changes in response to sun or hormones
cause of athlete’s foot
fungal infection in moist areas
symptom of jock itch
red, itchy rash in groin area
cold sore treatment
antiviral medications, no cure
symptom of third-degree burn
full destruction of skin layers, no pain
cause of post-inflammatory hyperpigmentation
dark spots after acne in people of color
psoriasis turnover rate
3-5 days instead of 28-30
decubitus ulcer prevention
shift weight frequently
vitiligo cause
melanocytes die or stop functioning
skin cancer risk factor
blistering sunburn before age 20
symptoms of eczema
inflamed, irritated skin
cause of hives
skin reaction to allergens
cause of ringworm
fungal infection, raised red ring
symptoms of herpes outbreak
tingling or itching, even without blisters
warts cause
HPV virus
treatment for seborrheic dermatitis
antifungal shampoo, topical steroids
symptoms of cold sores
fluid-filled blisters around lips
2nd-degree burn treatment
debriding, pain relief, wound cleaning
sebaceous glands
glands that secrete oil to lubricate skin and hair
keratin
protein that provides waterproofing and strength to skin
melanin
pigment that protects skin from UV radiation
Arrector pili
muscle causing hair to stand up, creating “Goosebumps”
stratum corneum
outer layer of dead keratinized cells in the epidermis
hypodermis
deep layer of skin, contains fat and areolar tissue
dendritic cells
cells that alert the immune system to pathogens
eccrine glands
sweat glands involved in temperature regulation
stratum bassale
the deepest layer of the epidermis, where new cells form
collagen
protein providing stregth and elasticity to the skin
langerhans cells
immune cells in the epidermis that defend against microbes
dermcidin
antimicrobial protein found in sweat
cyanosis
bluish skin color due to low oxygen levels
stratum lucidum
clear layer of epidermis found in thick skin
vitiligo
condition where skin loses pigment in blotches
callus
hardened thick skin due to chronic friction
albinism
genetic condition resulting in lack of melanin production
apocrine glands
swear glands associated with body odor, found in axillary region
papillary layer
upper layer of dermis that creates fingerprints
