Chapter 5-Integumentary System Flashcards by ahmaya king | Brainscape

Q

3 layers of the skin

A

epidermis
dermis
hypodermis

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Q

Function of Skin

A

regulate body temp
manufacture vitamin d
nerve receptors
protect against uv radiation

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Q

Epidermis is….?

A

the outermost covering

-avascular

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Q

Dermis is a…?

A

connective tissue

-vascular

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Q

keratinocytes

A

waterproof layer

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Q

merkel cells

A

sensory receptor for touch

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Q

melanocytes

A

protector from UV rays

-makes protein melanin

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Q

langerhans cells

A

defend against microorganisms

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Q

Epidermal Layer

-Stratum Germinativum

A

where cells are dividing

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Q

Epidermal Layer

-stratum spinosum

A

cells binding

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Q

Epidermal Layer

-stratum granulosum

A

cells begin to die

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Q

Epidermal Layer

-stratum lucidum

A

thick skin

- found at heel of feet and palms

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Q

Epidermal Layer

-stratum corneum

A

surface layer

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Q

Dermis / Corium

A

thicker, inner layer of the skin
many nerve receptors
blood vessels + heat regulation

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Q

Subcutaneous Layer/ Hypodermis

A

lies under dermis

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Q

Appendages Hair

- Rooft shaft

A

underneath skin

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Q

Appendages Hair

-hair follicle

A

route is embedded

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Q

Appendages Hair

-arrector pili muscle

A

is what creates goosebumps

Q

Appendages Nail

A

Hard surfaces
Nail bed
Disease and nail color

Q

Appendages Sweat Glands

A

Perspiration 99% -water excreted through pored

500ml water lost per day

Q

Aging

A

fragile and dry

loss of elasticity

less effective body temp. control

melanocytes decrease

look of subcutaneous fat

Q

acne

A

common and chronic disorder of sebaceous glands

Q

athletes foot

A

contagious fungi infection

Q

Dermatitis

A

inflammation of the skin

Q

eczema

A

acute or chronic, noncontagious inflammatory skin disease

Q

impetigo

A

acute inflammatory and contagious disease

Q

psoriasis

A

chronic inflammatory skin disease

Q

ringworm

A

highly contagious fungal infection

Q

urticaria (hives)

A

intensely itching wheals or welts

Q

boils (carbuncles)

A

bacterial infection of the hair follicles or sebaceous glands

Q

rosacea

A

common inflammatory disorder/ chronic redness

Q

Herpes

A

viral infection

Q

herpes simplex

A

cold sore

Q

herpes genital

A

virus

blisters in gentitals

Q

herpes zoster

A

shingles and chicken pox

Q

head lice

A

parasitic insects

Q

basal cell carcinoma

A

most common least malignant

on face

treated with cryosurgery

Q

squamous cell carcinoma

A

moves rapidly

on scalp and lip

treated with surgery or radiation

Q

malignant melanoma

A

irregularly shaped in melanocytes

spreads rapidly

treated with chemotherapy

Q

A. B C D

A

assymetry
border irregularity
color
diameter

Q

ulcer stage 1

A

area red

Q

ulcer stage 2

A

skin blistering

Q

ulcer stage 3

A

ulcer broken through all layers

Q

ulcer stage 4

A

ulcer goes through skin and muscles to the bones