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Anatomy & Physiology Exam 1
The Integument System: Clinical Disorders
10
Anatomy
Undergraduate 2
02/16/2010

Additional Anatomy Flashcards

 


 

Cards

Term
What causes skin cancer?
Definition

1) genetic predisposition when exposed to certain environmental factors

2) exposure to UV radiation

Term

What are the 3 main types of skin cancer?

what is the prognosis of each?

Definition

1) basal cell carcinoma- most common, least harmful

2) squamous cell carcinoma- can become fatal

3) malignant melanoma- least common, usually fatal unless treated early

Term

What happens in basal cell carcinoma?

where does it start?

treatment?

Definition

-begins in stratum basale

-causes tissue destruction producing open ulcer

-treated by surgery or radiation therapy

Term

What happens in squamous cell carcinoma?

where does it begin?

what happens on rare occasions?

Definition

-begins in stratum spinosum, cells continue unregulated cell growth (shouldn't have dividing ability)

-rarely, tumor can migrate out of epidermis & invade dermis

-tumor can metastasize & travel to other body locations via circulatory system

Term

What happens in malignant melanoma?

how developed?

Definition

-develops from melanocytes usually in a pre-existing mole

-develops a large flat pigmented nodule "hard lump"

-metastasis is common

Term
What does metastasis mean?
Definition
a cancer tumor "breaking free" and traveling to other body locations via circulatory system
Term

What are first degree burns?

involve what structure?

healing time?

Definition

-involve only epidermis

-red, painful, but heal in < 1 week

-do not scar

Term

What are second degree burns?

involve what structure?

 

Definition

-involve epidermis and dermis

-red, painful, heal in in 1-2 weeks

-scarring depends on how badly dermis is damaged

-edema usually develops

-blisters

Term
what is edema?
Definition

the loss of fluid from blood vessels & into tissues

 

-inflammation & swelling

-usually occurs in 2nd degree burns

Term
What are 3rd degree burns?
Definition

-epidermis & dermis are completely destroyed

-skin grafts are often necessary b/c skin can regenerate only from edges of burns

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