Integumentary Sytem

Question 1

What makes up the integumentary system?

Answer 1

Consists of the skin and its derivatives

Question 2

What is another name for the integument?

Answer 2

Cutaneous Membrane

Question 3

What are the two layers of the integument?

Answer 3

• Epidermis

Stratified squamous epithelium

• Dermis

Primarily dense irregular connective tissue

Question 4

The layer beneath the integument is called the

Answer 4

Subcutaneous layer, or hypodermis

Question 5

What are the four cells found in the integument?

Answer 5

Keratinocyte

Melanocyte

Lancerhans

Merkerl

Question 6

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

Answer 6

Keratinocyte

Question 7

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

Answer 7

Melanocyte

Question 8

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

Answer 8

Langerhans Cell

Question 9

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

Answer 9

Merkel Cell

Question 10

Thick Skin

Answer 10

• 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

Question 11

Thin skin

Answer 11

• 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

Question 12

Answer 12

Thick Skin

Question 13

Answer 13

Thin Skin

Question 14

7 functions of the integumentary system

Answer 14

Protection

Regulation of Body Temperature

Sensation

Absorption

Excretion

Blood Reservoir

Vitamin D Synthesis

Question 15

Explain the Function of the Integumentary System: Protection

Answer 15

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

Question 16

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

Answer 16

• Sweat
• Arrector pilli muscle: goose bumps

Question 17

Explain the Function of the Integumentary System: Sensation

Answer 17

• Pain
• Temperature
• Touch (Merkel cells)
• Pressure
• Tickle
• Itch

Question 18

Explain the Function of the Integumentary System: Absorption

Answer 18

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

Question 19

Explain the Function of the Integumentary System: Excretion

Answer 19

• Ions
• Urea
• Amino Acids
• Water

Question 20

Explain the Function of the Integumentary System: Blood Resevoir

Answer 20

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

Question 21

Explain the Function of the Integumentary System: Vitamin D Synthesis

Answer 21

Skin-Liver/Kidney-GI tract-Ca⁺⁺

Question 22

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

Answer 22

Keratinocyte

Question 23

Two people with different skin colors differ in

Answer 23

How much melanin is produced by the melanocytes

Question 24

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?

Answer 24

Dermis

Question 25

Response to damaged tissues: **Regeneration**

Answer 25

* Replacement of damaged cells with same cell type * Restores organ funciton

Question 26

Response to damaged tissues: **Fibrosis**

Answer 26

* 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

Question 27

Stages of Wound Healing

Answer 27

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)

Question 28

Which Stage of wound healing is this?

Answer 28

Step 1

Question 29

Which Stage of wound healing is this?

Answer 29

Step 2

Question 30

Which Stage of wound healing is this?

Answer 30

Step 3

Question 31

Which Stage of wound healing is this?

Answer 31

Step 4

Question 32

First Degree Burn

Answer 32

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

Question 33

Second Degree Burn

Answer 33

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

Question 34

Third degree burn

Answer 34

Destroys epidermis+ all of dermis (no nerves)

Question 35

Rule of Nines

Answer 35

1%

Question 36

Rule of Nines

Answer 36

4.5%

Question 37

Rule of Nines

Answer 37

9%

Question 38

Rule of Nines

Answer 38

18%

Question 39

Rule of Nines

Answer 39

36%

Question 40

What are the common forms of skin cancer?

Answer 40

Basal Cell Carcinoma Squamous Cell Carcinoma Melanoma

Question 41

Basal Cell Carcinoma

Answer 41

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

Question 42

Squamous Cell Carcinoma

Answer 42

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

Question 43

Melanoma

Answer 43

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

Question 44

Which type of skin cancer is most common?

Answer 44

Basale Cell Carcinoma

Question 45

Which type of skin cancer spreads to lymph nodes?

Answer 45

Squamous Cell Carcinoma

Question 46

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

Answer 46

Melanoma

Question 47

Answer 47

Basale Cell Carcinoma

Question 48

Answer 48

Squamous Cell Carcinoma

Question 49

Answer 49

Melanoma