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A&P Bio 245 > Integumentary Sytem > Flashcards

Integumentary Sytem Flashcards

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1
Q

What makes up the integumentary system?

A

Consists of the skin and its derivatives

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2
Q

What is another name for the integument?

A

Cutaneous Membrane

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3
Q

What are the two layers of the integument?

A
  • Epidermis

Stratified squamous epithelium

  • Dermis

Primarily dense irregular connective tissue

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4
Q

The layer beneath the integument is called the

A

Subcutaneous layer, or hypodermis

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5
Q

What are the four cells found in the integument?

A

Keratinocyte

Melanocyte

Lancerhans

Merkerl

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6
Q

Which of the four cells found in the integument is this?

A

Keratinocyte

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7
Q

Which of the four cells found in the integument is this?

A

Melanocyte

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8
Q

Which of the four cells found in the integument is this?

A

Langerhans Cell

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9
Q

Which of the four cells found in the integument is this?

A

Merkel Cell

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10
Q

Thick Skin

A
  • Found on the palms of hands, soles of feet, and surgaces of fingers and toes
  • Has all 5 layers of the epidermal strata
  • Has sweat glands
  • No hair follicles or sebaceous glands
  • From 0.4 to 0.6 mm thick
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11
Q

Thin skin

A
  • Covers most of the body
  • Lacks a stratum lucidium
  • Has seat glands, hair follicles and sebaceous glands
  • from 0.075 to 0.150 mm thick
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12
Q
A

Thick Skin

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13
Q
A

Thin Skin

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14
Q

7 functions of the integumentary system

A

Protection

Regulation of Body Temperature

Sensation

Absorption

Excretion

Blood Reservoir

Vitamin D Synthesis

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15
Q

Explain the Function of the Integumentary System: Protection

A
  • Immunity (Langerhans cells)
  • Physical Barrier
  • Hair/Nails
  • Color
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16
Q

Explain the Function of the Integumentary System: Regulation of Body Temperature

A
  • Sweat
  • Arrector pilli muscle: goose bumps
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17
Q

Explain the Function of the Integumentary System: Sensation

A
  • Pain
  • Temperature
  • Touch (Merkel cells)
  • Pressure
  • Tickle
  • Itch
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18
Q

Explain the Function of the Integumentary System: Absorption

A
  • No: water soluble
  • Yes: lipid soluble= Vitamins A,D,E,K; acetone, oxygen, carbon dioxide, heavy metals, gases, drugs ect.
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19
Q

Explain the Function of the Integumentary System: Excretion

A
  • Ions
  • Urea
  • Amino Acids
  • Water
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20
Q

Explain the Function of the Integumentary System: Blood Resevoir

A

Extensive network of blood vessels that carry 8-10% of total blood flow of a resting adult

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21
Q

Explain the Function of the Integumentary System: Vitamin D Synthesis

A

Skin-Liver/Kidney-GI tract-Ca++

22
Q

The cell type that makes up the majority of cells in the epidermis is the

A

Keratinocyte

23
Q

Two people with different skin colors differ in

A

How much melanin is produced by the melanocytes

24
Q

You are looking at a slide of the integument under the microscope. You see dense irregular connective tissue. What layer of the integument are you viewing?

A

Dermis

25
Q

Response to damaged tissues: Regeneration

A
  • Replacement of damaged cells with same cell type
  • Restores organ funciton
26
Q

Response to damaged tissues: Fibrosis

A
  • Gap filled with scar tissue
  • Composed of collagen produced by fibroblasts
  • Functional activities not resotred
  • If organ too damaged or cells lack ability to divide
27
Q

Stages of Wound Healing

A

1) Cut blood vessels bleen into wound
2) Blood clot- formed by platelets sticking together- forms and leucocytes clean the wound
3) Blood vessels regros and granulation tissue forms

Granulation tissue: first step in laying down skin: connective tissue

4)Epithelium regenerates and connective tissue fibrosis occurs (from bottom up)

28
Q

Which Stage of wound healing is this?

A

Step 1

29
Q

Which Stage of wound healing is this?

A

Step 2

30
Q

Which Stage of wound healing is this?

A

Step 3

31
Q

Which Stage of wound healing is this?

A

Step 4

32
Q

First Degree Burn

A

Epidermis is hurt: red, swollen, pain, no blisters, heals in 3-6 days, no scarring, flaking

33
Q

Second Degree Burn

A

Destroys epidermis + upper dermis: red, blisters, edema, pain, heals in 3-4 weeks, may scar

34
Q

Third degree burn

A

Destroys epidermis+ all of dermis (no nerves)

35
Q

Rule of Nines

A

1%

36
Q

Rule of Nines

A

4.5%

37
Q

Rule of Nines

A

9%

38
Q

Rule of Nines

A

18%

39
Q

Rule of Nines

A

36%

40
Q

What are the common forms of skin cancer?

A

Basal Cell Carcinoma

Squamous Cell Carcinoma

Melanoma

41
Q

Basal Cell Carcinoma

A

Shiny, dome-shaped, MOST COMMON (78%), slow growing, basale layer, rarely metastasizes.

42
Q

Squamous Cell Carcinoma

A

Scaly, red, spinosum layer, 2nd most common (20%), can be anywhere there is pigment, metastazises to the lymph nodes.

43
Q

Melanoma

A

Least common but deadly (2%), can be anywhere there is pigment, metastasizes to the lymph

44
Q

Which type of skin cancer is most common?

A

Basale Cell Carcinoma

45
Q

Which type of skin cancer spreads to lymph nodes?

A

Squamous Cell Carcinoma

46
Q

Which type of skin cancer is the least common, and spreads to the lymph?

A

Melanoma

47
Q
A

Basale Cell Carcinoma

48
Q
A

Squamous Cell Carcinoma

49
Q
A

Melanoma

50
Q
A

A&P Bio 245 (15 decks)

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