Derm Flashcards
Integumentary system consists of what organs?
Skin, Accessory organs (hair, Nails), exocrine glands
Functions of skin
Protection, Sensory, thermoregulation, excretion, homeostasis, storage & production of vitamin D
3 layers of skin
Epidermis, dermis, subcutaneous
Outermost layer of skin ?
Epidermis
Top most layer of epidermis ?
Stratum corneum
Lowermost layer of epidermis ?
Startup basale/ germinativum
New cells are formed in which layer of epidermis?
Stratum basale
Which layer of skin contains cells with concentrations of keratin?
Stratum corneum
Which layer has horny cells?
Stratum corneum of epidermis
What protein does horny cells contain?
Keratin
Melanocytes are found in which layer of skin?
Starting corneum of epidermis.
Epidermis is made of what type of epithelium?
Stratified squamous epithelium
What is albinosis?
Incapable of production of melanin.
Which is the thickest layer of skin?
Dermis
What is another name for dermis?
Corium
What protein is dermis predominantly made of?
Fibrous and elastic tissue
Which layer of skin contains blood vessels?
Dermis.
Which layer contains sweat glands ?
Dermis.
Which layer contains hair follicles ?
Dermis.
How does hair get its colour?
Hair follicles are surrounded by melanocytes. This gives hair the colour.
What are hair cells made ?
Horny cells.
Which layer is called hypodermis?
Subcutaneous layer
Which layer specializes in formation of adipocytes?
Subcutaneous layer
What is the function of subcutaneous layer?
Insulation and protection of deeper tissue.
What protein helps the skin from UV?
Melanin in stratum corneum of epidermis.
Parts of finger nails?
Hyponychium, eponychium, paronychium, lunula
What is nail made of?
Keratin
Sweat glands pores are found in which layer ?
Epidermis
Sweatbands are controlled by which part of brain?
Hypothalamus
What is an example of a modified sweat gland ?
Mammary glands
Sweat glands are found predominantly in which parts of the body?
Palm, soles, forehead
What are apocrine glands?
Glands that produce sweat containing fatty materials.
Where are apocrine glands found?
Armpits, genital area.
What are sebaceous glands?
Produce sebum (oil + fat) and debris of dead fat producing cells
Which glands keeps hair and skin water proof?
Sebaceous gland.
What is a lesion?
Pathology of tissue
Sac like pocket of membranous tissue with content.
Cyst
Pilonidal cyst
Hair and skin debris on tailbone
Sebaceous cyst
Keratin or sebum cyst
Another name for sebaceous cyst
Epidermoid cyst
Mushroom like growth
Polyp
Polyp grows on which membrane ?
Mucous membrane
Bed sore is called ?
Decubitus ulcer
maculae
discoloured area of skin less than 1cm
papule
solid/cystic raised spot less than 1 cm
nodules
elevated lesions of 5cm, deeper than a papule
pustule
bulge of skin filled with pus
vesicle
fluid filled sacs. fluid maybe white, yellow or mixed with blood
wheal
allergic swelling with itching or burnin g sensation
petechiae
small pinpoint round red spots on the skin due to micro bleeding.
ecchymoses
larges areas of discolouration of skin due to bruising
purpura
purple spots rash on the skin due to bleeding.
pruritus
itching
leukoderma is also called
achromoderma
what is achromoderma
area of white pigmented skin due to total loss of melanin
urticaria
itchy raised areas due to allergic response of skin
gangrene
death of body tissue
first degree burn affects
epidermis
second degree burn affects
epidermis and parts of dermis
third degree burns
completely destroys epidermis and dermis. also damages underlying bones, muscles and tendons
fourth degree burns
when bones, muscles are also burned
hyperkaratosis
thickening of skin due to deposition of keratin
types of acute hyperkeratosis
corns and calluses
scabies
contagious prurituc skin rash caused by sarcoptus scabiei
ringworm
ring like rash on skin caused by fungus
tinea pedis
athletes foot, is a fungal infection between toes caused by sweat
boil
painful pus filled bump that forms due to bacterial infection of hair follicles
carbuncle
cluster of boils
warts
small non cancerous growth caused by human papillomavirus
shingles caused by ?
varicella zoster virus
cellulitis
bacterial skin infection which is swollen, tender and warm to touch.
impetigo
yellow crust on skin caused by staph infection
hansen’s disease
leprosy
caused by myobacterium leprae
3 major types of skin cancer
basal cell carcinoma
squamous cell carcinoma
melanoma
atopic dermatitis
eczema
chronic dry, itchy skin rash
contact dermatitis
inflammation of skin due to contact with allergens
seborrheic dermatitis
dandruff
acne vulgaris
blocked hair follicles
acne inversa
hydraadenitis suppurativa
inflammation of apocrine glands leading to chronic skin condition forming abscess