Quiz 3

Question 1

• Integumentary system
  – Consists of the ———————-

Answer 1

the skin and its accessory organs; hair, nails, and cutaneous glands

Question 2

Inspection of the skin, hair, and nails is _________________

Answer 2

a significant part of the physical exam.

Question 3

Skin is the most vulnerable organ __________

Answer 3

– Exposed to radiation, trauma, infection, and injurious chemicals

Question 4

Skin receives more medical treatment than any other organ
system

Answer 4

True

Question 5

Dermatology

Answer 5

scientific study and medical treatment of
the integumentary system

Question 6

Skin is the body’s largest and ________ organ.

Answer 6

heaviest

Question 7

Skin covers AREA of __ m^2 to __ m^2re

Answer 7

1.5, 2

Question 8

Skin is 15 % of the _____

Answer 8

body weight

Question 9

Most skin is ___ to ___ thick

Answer 9

1mm, 2mm

Question 10

The Skin’s two layers are the

Answer 10

epidermis and the dermis

Question 11

the epidermis layer is made up of ___________, the dermis is made up of ___________

Answer 11

stratified squamous epithelia, connective tissue layer

Question 12

Thick Skin

Answer 12

0.5mm thick, sweat glands, but no hair follicles, palms and soles

Question 13

thin skin

Answer 13

01mm thick, covers most of the body, has sweat glands, hair glands, and sweat glands

Question 14

Hypodermis

Answer 14

below the dermis
connective tissue

Question 15

What are the seven functions of the skin

Answer 15

transdermal absorption, Vitamin D synthesis, nonverbal communication, thermoregulation, sensation, other barrier functions, resistant to trauma and infection

Question 16

1) function of the skin: transdermal absorption

Answer 16

administration of certain drugs and medicine through skin that is thin with adhesive patches

Question 17

2) function of the skin: thermoregulation

Answer 17

thermoreceptors
vasoconstriction/vasodilation

Question 18

2) function of the skin: thermoregulation

Answer 18

thermoreceptors
vasoconstriction/vasodilation

Question 19

3) function of the skin: sensation

Answer 19

skin is our most extensive sense organ

Question 20

4) function of the skin: nonverbal communication

Answer 20

acne, birthmark, and scar

Question 21

5) function of the skin: resistance to trauma and infection

Answer 21

keratin
acid mantle

Question 22

6) function of the skin: other barrier functions of skin

Answer 22

Waterproofing
UV radiation
harmful chemicals

Question 23

7) function of the skin: Vitamin D sysnthesis

Answer 23

Skin first step
Liver and kidney complete the process

Question 24

Cells that make up the epidermis

Answer 24

keratinized stratified squamous
epithelium

Question 25

4 characteristics of the epidermis

Answer 25

1) Dead cells at the surface packed with tough protein called keratin 2) Lacks blood vessels 3) Depends on the diffusion of nutrients from underlying connective tissue 4) Sparse nerve endings for touch and pain

Question 26

Five type of cells of the epidermis

Answer 26

1) stem cells 2)keratinocytes 3) melanocytes 4) tactile (merkel) cells 5) dendritic (Langerhans) cells

Question 27

Epidermis: Stem cells

Answer 27

1) undifferentiated cells that give rise to keratinocytes 2) in deepest layer of the epidermis (stratum basale)

Question 28

epidermis: keratinocytes

Answer 28

1)great majority of epidermal cells 2)synthesize keratin

Question 29

epidermis: melanocytes

Answer 29

1) occur only in stratum basale 2)Synthesize pigment melanin that shields DNA from ultraviolet radiation

Question 30

Epidermis: Tactile (Merkel) cells

Answer 30

* In basal layer of epidermis * Touch receptor cells associated with dermal nerve fibers

Question 31

Dendritic (Langerhans) cells

Answer 31

Macrophages originating in bone marrow that guard against pathogens * Found in stratum spinosum and granulosum * Stand guard against toxins, microbes, and other pathogens that penetrate skin

Question 32

Epidermis: Dendritic (Langerhans) cells

Answer 32

Macrophages originating in bone marrow that guard against pathogens * Found in stratum spinosum and granulosum * Stand guard against toxins, microbes, and other pathogens that penetrate skin

Question 33

Epidermis: Stratum basale

Answer 33

– A single layer of cuboidal to low columnar stem cells and keratinocytes resting on the basement membrane – Melanocytes and tactile cells are scattered among the stem cells and keratinocytes

Question 34

Epidermis: Stem cells of stratum basale divide

Answer 34

– Give rise to keratinocytes that migrate toward skin surface – Replace lost epidermal cells

Question 35

Epidermis: Stratum spinosum

Answer 35

– Produce more and more keratin filaments which causes cell to flatten; the higher up in this stratum, the flatter the cells appear

Question 36

Epidermis: Stratum _____ _____ cells found this stratum

Answer 36

spinosum, dendritic

Question 37

Stratum Spinosum - named for the sp___y appereance of its cells in histological section

Answer 37

spiny in histological section

Question 38

Stratum Spinosum - _______ desmosomes and cell shrinkage produces sp___y appearance

Answer 38

numerous, spiny

Question 39

consist of various layers of keratinocytyes

Answer 39

stratum spinosum

Question 40

thickets stratum in skin

Answer 40

stratum spinosum after is stratum corneum

Question 41

deepest cells remain capable of ___ in stratum spinosum

Answer 41

mitosis cells in stratum spinosum cease mitosis when they are pushed upward

Question 42

stratum granulusom consist of:

Answer 42

3 to 5 layers of keratinocytes contains coarse dark staining keratohyalin granules

Question 43

stratum lucidum

Answer 43

seen only in thick skin translucent layer superficial to stratum granulusom keratinocytes are densely packed with eledin cells have no nucleus or other organelles zone has a pale, featureless apperance with indistrict boundaries