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Biomed > Chapter 7 - Integumentary System & Body Temp. > Flashcards

Chapter 7 - Integumentary System & Body Temp. Flashcards

1
Q

Skin

A

Cutaneous membrane

- Larger organ

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2
Q

Epidermis

A

Stratified squamous
- Avascular

  • Stratus corneum
  • Stratus germanatirum
  • cells push upwards towards the surface, replacing the dead cells
  • keratinization
  • Melanocytes
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3
Q

Stratus corneum

A
  • About 30 layers of dead sells

- Flake off (Think dandruff)

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4
Q

Stratus germanatirum

A
  • Layer of continuously dividing (mitosis) cells

- Makes million of new cells every day

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5
Q

keratinization

A
  • Tough protein deposited with in cells (keratin)

- Makes skin waterproof.

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6
Q

Melanocytes

A

Deep in epidermis

  • Contains melanin
  • Everyone has same amount
  • NV Light
  • Albinism
  • Vitiligo
  • Freckles and moles
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7
Q

Contains melanin

A

skin darkening pigment

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8
Q

NV Light

A

causes secretion of more melanin

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9
Q

Albinism

A
  • Lack of melanin

- Genetic

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10
Q

Vitiligo

A

Patchy spot laking pigment

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11
Q

Freckles and moles

A
  • Concentrated spots of melanocytes
  • Normal to have approximately 10 to 20 moles
  • Moles can become melanoma (cancer)
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12
Q

Cancers Moles

A 
- Asymmetry 
    (Circle is good, a line or triangle is bad) 
- Borders of uneven (bumpy)
- Color 
     (Red, blue or black) 
- Diameter 
     (larger than pencil eraser)
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13
Q

Dermis

A 
Dense fibrous CT 
- Accesory structures 
     >Hair, glands, Nails 
- Vascular; blood-vessels, nerves, some muscle 
- Nerves
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14
Q

Subcutaneous

A

Hypo dermis

  • Loose CT and adipose (fat)
  • cushion and insulin
    Anchors skin to underlying structures
    knuckles, knees, and elbows don’t have much subcutaneous layer
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15
Q

Layers

A
  • Epidermis
  • Dermis
  • Subcutaneous
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16
Q

Functions

A
  • Absorption
  • Color
  • Hair
  • Glands
17
Q

Absorption

A
  • Chemicals, drugs, toxins, etc.

- Wear gloves and masks to prevent

18
Q

Color

A

Can be indicator

  1. Cyanosis
  2. Flushed
  3. Pallor
  4. Ecchmosis
  5. Jaundice
  6. Carotene
19
Q

Cyanosis

A

Bluish; poorly oxygenated skin

20
Q

Pallor

A

Pale; blood vessels dilate

21
Q

Ecchmosis

A

Bruise

22
Q

Jaundice

A

Yellow; malfunction of liver

( excess bilirubin )

23
Q

Carotene

A

Yellow/orange pigment

24
Q

Hair

A

Warm, protection, influenced by sex hormones

  1. Root in follicle ( under skin )
    • Shaft ; outside of head/skin
  2. Color - Based off genetics, age, environment
  3. Wavy, Carly, or Straight
  4. Reveals drugs, chemicals, poisons
  5. Provides heat
25
Q

Wavy, Carly, or Straight

A

Depends on shape of shaft

  • Round = Straight
  • Oval = Wavy
  • Flat = Curly
26
Q

Arrector pili

A

Causes skin to rise and hair to stand ( goose bumps ) to keep heat in.

27
Q

Glands

A

Exocrine ; secrete outside the body

  1. Sebacons
  2. Sweat glands
  3. Extra glands
    - Blackheads : Blocked glads; sebum hardens
    - Pimples : Blocked and staphy locous
28
Q

Sebacons

A

Oils

- lubricate and keep water proof

29
Q

Sweat glands

A

Sudoriferious

  • 3 million
  • apocrine
  • eccrine
30
Q

Apocrine

A

Associated with hair in axillary and genital areas…… result of puberty

31
Q

Eccrine

A

More numerous

  • Temp. control
  • Evaporate for cool
  • Can make one gallon of sweat per hour
32
Q

Extra glands

A
  • Ceremonious

- Mammary

33
Q

Ceremonious

A

Cerumen ( earwax)

34
Q

Mammary

A

Breast (milk)

35
Q

Burns

A

Rules of Nines

- Determins % of body burned

36
Q

1st degree burn

A
  • Sunburn
  • red, painful, swollen
  • Only epidermis is involved
37
Q

2nd degree burn

A
  • redness, pain, edema, blister, tan, white, purple

- involves epidermis and dermis within the damage to dermis

38
Q

3rd degree burn

A
  • Painless because if destroys nerve endings
  • Tan, white, brown, block, deep purple, deep cheery red
  • Epidermis and dermis are destroyed and potentially damaged to underlying layers.

Biomed (8 decks)

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