Chapter 5- Integumentary

Question 1

guards the body
maintains a constant temp
provides sensory info

Answer 1

Integumentary system

Question 2

Structures of the skin

Answer 2

epidermis
dermis
subcutaneuous layer (sub Q) or hypodermis

Question 3

not part of the skin
storage depot for fats
large blood vessels
pacinian corpuscles

Answer 3

hypodermis

Question 4

functions of the skin

Answer 4

thermoregulation
blood reservoir
cutaneous respiration
protection from external envi
excretion
sensation
absorption

Question 5

the epidermis contains 4 other principal type of cells:

Answer 5

Keratinocytes
melanocytes
langerhan cells
merkel cells

Question 6

90% of epidermis

keratin

Answer 6

keratinocytes

Question 7

8%
skin color
absorbs UV

Answer 7

melanocytes

Question 8

immune responses against microbes

Answer 8

langerhan cells

Question 9

touch

Answer 9

merkel cells

Question 10

20-30 rows of keratinocytes that contain intermediate filaments, keratohyalin and lamellar granules

Answer 10

stratum corneum

Question 11

present only in the skin of fingertips, plams and soles

3-5 rows of dead keratinocytes

Answer 11

stratum lucidum

Question 12

3-5 rows of flattened keratinocytes

organelles begin to degenerate

Answer 12

stratum granulosum

Question 13

8-10 rows of polyhedral keratinocytes

includes projections of melanocyted and langerhan cells

Answer 13

stratum spinosum

Question 14

deepest layer
1 row of cuboidal/columnar keratinocytes
stem cells divide to produce new keratinocytes, melanocytes, langerhan cells and merkel cells

Answer 14

stratum basale

Question 15

layers epidermis

Answer 15

Corneum
lucidum
granulosum
spinosum
basale

Question 16

Layers of Dermis

Answer 16

Papillary

reticular layer

Question 17

superficial portion
areolar CT with elastic fibers
dermal papillae

Answer 17

papillary

Question 18

deeper portion of the dermis

striae or stretch marks

Answer 18

reticular layer

Question 19

mainly in epidermis (pigment for skin color)

Answer 19

melanin

Question 20

yellow orange pigment

Answer 20

carotene

Question 21

red color

Answer 21

hemoglobin

Question 22

yellow-like

Answer 22

jaundice

Question 23

accessory structures of the skin

Answer 23

hair or pilli
nail
skin glands
exocrine glands

Question 24

what are the exocrine glands

Answer 24

sebaceous glands
sudoriferous glands
ceruminous glands
mammary glands

Question 25

secretory portion in the dermis
opens into the neck of hair follicles
absent in palms and soles
opens directly into the surface of the skin
large in the face, neck and upper breast

Answer 25

sebaceous glands

Question 26

has eccrine and apocrine

Answer 26

sudoriferous glands

Question 27

only epidermis is damaged
heals in 2-3 days
sunburn

Answer 27

first degree burns

Question 28

epidermis and upper region of the dermis
blisters
red skin
no permanent scar

Answer 28

second degree burns

Question 29

full thickness burns
blanched
nerve endings are destroyed
regeneration ain’t possible

Answer 29

third degree burns

Question 30

Lower limbs and trunk

Answer 30

36%

Question 31

upper limbs

Answer 31

18%

Question 32

head and neck

Answer 32

9%

Question 33

perineum

Answer 33

1%

Question 34

25% of the body is burned

Answer 34

2nd degree

Question 35

10% burnt

Answer 35

3rd degree

Question 36

what are the epithelial membranes

Answer 36

cutaneous
mucous
serous

Question 37

developmental aspects of the skin and body membranes

Answer 37

lanugo
vernix caseosa
milia

Question 38

amount of sub Q decreases
hair loses
alopecia
male baldness (vellus)

Answer 38

Old Age