Integumentary System

Question 1

Integumentary System

Answer 1

encloses internal body structures; site of many sensory receptors; thermoregulation; vitamin D synthesis

Question 2

Skin

Answer 2

made up of multiple layers of cells and tissues; are held by underlying structures by connective tissue

Question 3

Layers of Skin

superficial to deep

Answer 3

Epidermis
dermis
hypodermis

Question 4

Types of Skin

Answer 4

thin skin- located throughout body (

thick skin- located on palms and soles of feet

Question 5

Keratinocyte

Answer 5

is a cell that manufactures and stores the protein keratin

Question 6

Stratum Basale

Answer 6

deepest epidermal layer (the base)

Question 7

Stratum Spinosum

Answer 7

spiny in appearance

Question 8

Stratum Granulosum

Answer 8

grainy appearance

Question 9

Stratum Lucidum

Answer 9

smooth, seemingly translucent layer of the epidermis

Question 10

Stratum Corneum

Answer 10

the most superficial layer of the epidermis and is the layer exposed to the outside environment

Question 11

Come Let’s Get Sun Burnt

Answer 11

Stratum Corneum
Stratum Lucidum
Stratum Granulosum
Stratum Spinosum
Stratum Basale

Question 12

Integumentary System main organs

Answer 12

Skin, hair, nails- protects

Question 13

Keratin

Answer 13

a fibrous protein forming the main structural constituent of hair, feathers, hoofs, claws, horns, etc

Question 14

Thin Skin

Answer 14

has a relatively thin epidermis and contains hair follicles, sweat glands, and sebaceous glands

Question 15

Thick Skin

Answer 15

hairless and consists of an extra layer of the epidermis known as the stratum lucidum

Question 16

hair

Answer 16

is a keratinous filament growing out of the epidermis

Question 17

hair follicle

Answer 17

stands of hair originate in an epidermal penetration of the dermis called the hair follicle- under skin and hair shaft

Question 18

hair shaft

Answer 18

is the part of the hair not anchored to the follicle and much of this is exposed at the skin’s surface- in the the epidermis and dermis

Question 19

hair root

Answer 19

ends deep in the dermis at the hair bulb and includes a layer of mitotically active basal cells- epidermis

Question 20

free edge

Answer 20

Protects the tips of our fingers and toes as they are the farthest extremities and the parts of the body that experience the maximum mechanical stress- beyond the nail plate

Question 21

lunula

Answer 21

thick layer of epithelium over the nail matrix forms a a crescent region- closest to the skin of the finger

Question 22

Epomychium

Answer 22

the nail fold that meets the proximal end of the nail body and forms the nail cuticle- on the vertical side of the proximal nail fold

Question 23

Nail Root

Answer 23

nail body forms at the nail root, which has a matrix of proliferating cells from the stratum Basale that enables the nail to grow- lies below the skin under the nail

Question 24

Pores

Answer 24

a minute opening in a surface, especially the skin or integument of an organism, through which gases, liquids, or microscopic particles can pass- located on the face, chest, back, groin; along the surface of the epidermis

Question 25

Apocrine Sweat Glands

Answer 25

is usually associated with hair follicles in densely hairy areas, such as armpits and genital regions- located in dermis

Question 26

Eccrine Sweat Glands

Answer 26

is a type of gland that produces a hypotonic sweat for thermoregulation- located in dermis

Question 27

Function 1

Answer 27

Protection

Question 28

Function 2

Answer 28

Sensory

Question 29

Function 3

Answer 29

Thermoregulation

Question 30

Function 4

Answer 30

Vitamin D Regulation

Question 31

Basal Cell Carcinoma

Answer 31

- a type of skin cancer that usually develops on the face or neck area - main cause is long term exposure to UV radiation from sunlight - growth or a sore - surgery is most often used to remove

Question 32

Melanoma

Answer 32

- a type of skin cancer that starts when melanocytes starts to grow uncontrollably - genetic, sun exposure - large mole, skin growth - chemotherapy, surgery

Question 33

Eczema

Answer 33

- is a skin condition where your skin becomes itchy, red, bumpy - caused by weaker immune system, genetics, environment, stress levels - topical creams

Question 34

Acne

Answer 34

- happens when your hair follicles are clogged up with oil or dead skin cells- created white/black heads - medication, topicals - pimples

Question 35

first degree burns

Answer 35

- only involve top layer of skin (epidermis) - red and painful, swelling - cool the burn and cover it with bandage

Question 36

2nd degree burn

Answer 36

- outer and part of inner layer of skin (epidermis, dermis) - often looks wet - may be caused by hot water, open flames, hot objects, sun, chemicals, and electricity - blisters, pain, swelling, etc

Question 37

3rd degree burns

Answer 37

- destroy epidermis and dermis - also damage bones, muscles, tendons - charred and no sensation in area b/c nerve endings destroyed - dark brown color, leathery - skin graft, IV fluid, etc

Question 38

4th degree burn

Answer 38

- go through both layers of skin and underlying tissue as well as deeper tissue - flames, chemicals, etc - charred looking appearance, which in color, exposed bone and muscle tissue, etc - professional help to heal

Question 39

Stretch Marks

Answer 39

- are a type of scar that develops when skin stretches or shrinks too quickly - streak lines on body - no treatment- topical maybe

Question 40

Callus and Corns

Answer 40

- thick, hardened layers of skin that develop when your skin tried to protect itself from friction or pressure - avoid repetitive actions that cause them - on feet and toes, hands - doctors may prescribe custom shoe inserts to prevent corns or calluses from coming back

Question 41

Squamous Cell Carcinoma (cancer)

Answer 41

- caused by sun exposure overtime - protect skin with clothing, sunscreen, etc - found on dermis - flaky skin - UV=bad