Chapter 5

Question 1

Where can you find thick skin in the body?

Answer 1

plams, hands, feet

Question 2

thick skin has____ layers

Answer 2

5

Question 3

thin skin has____ layers

Answer 3

4

Question 4

Name the 5 layers of the skin from deepest to most superfisal

Answer 4

1.basale
2.spinosum
3.granulosm
4.lucidum
5.cornum

Question 5

which layer of the skin is NOT is not included in thin skin

Answer 5

strata lucidum

Question 6

skin layers are also called____

Answer 6

strata

Question 7

what is the deepest layer of skin

Answer 7

stratum basale

Question 8

strata is attached to the _____

Answer 8

Dermis

Question 9

what’s another name for stratum Basale

Answer 9

stratum germinativum

Question 10

10-25% of the Basale cell is composed of what cell?

Answer 10

melanocytes

Question 11

which layer has active mitosis

Answer 11

basal layer

Question 12

what layer is also known as the prickly layer

Answer 12

strata spinosum

Question 13

which layer of the epidermis is thick and alows them to resist tenison and pulling, due to pre-kertain and attached to desmosomes

Answer 13

strata spinsosum

Question 14

what cells appear spikey in the epidermis.

Answer 14

stratum spinosum

Question 15

what happens to the cells in the strata granulosm

Answer 15

cells flattend and start to die

Question 15

what layer of skin have cells flattend

Answer 15

strataum granulosm

Question 16

why do cells in the stratum granolusm start to die

Answer 16

too far away from capillaries

Question 17

what does the stratum lucidum consist of

Answer 17

dead ketinocytes

Question 18

which layer of the skin is the thickest

Answer 18

strata corneum

Question 19

though dead, cells still function to
protect deeper cells from the ____
prevent ____ loss, and act as a _____ agnist biological, chemical, and physical assaults

Answer 19

environment, water, abrasion and penetration, barrier

Question 20

What is apoptosis

Answer 20

cell death

Question 21

what does the dermis consist of

Answer 21

strong flexible connective tissue

Question 22

what does matrix contain

Answer 22

nerves, blood vessels and lymphatic vessels.

Question 23

What are the layers of the dermis

Answer 23

Papillary
reticular

Question 24

what layer has areolar connective tissue, collgen, elstaltic fibers and blood vessles

Answer 24

papillary layer

Question 25

what is the name of the superficial region of dermis that sends fingerlike projections into epidermis

Answer 25

dermal papillae

Question 26

epidermal ridges are also called ____

Answer 26

friction ridges

Question 27

what does the reticular layer consist of

Answer 27

coarse,dense fibrous connective tissue

Question 28

what is the network of blood vessels between reticular layer and hypo dermis

Answer 28

cutaneous plexus

Question 29

what are cleavage lines

Answer 29

collagen fibers running Parrell to skin surface

Question 30

What are flexture lines

Answer 30

dermal folds at or near joints

Question 31

what three pigments contribute to skin color

Answer 31

Melanin, cartone ,Hemogoblin

Question 32

what is the only pigment to be made in skin

Answer 32

melanin

Question 33

what are the 2 forms of mealinin

Answer 33

reddish yellow to brownish black

Question 34

what are skin color differnces due to

Answer 34

amount and form of melainin

Question 35

what is yellow to organge pigment and found in plams and soles

Answer 35

carotene

Question 36

what pigment comes from the strata corenum and hypodermis

Answer 36

carotene

Question 37

which pigment gives the pinkish hue

Answer 37

hemoglobin

Question 38

what is hemoglobin pink

Answer 38

lower levels of melanin

Question 39

what is cyanosis

Answer 39

blue skin color, low oxgenation levels of hemoglobin

Question 40

what is erythema

Answer 40

redness,fever, hypertension,inflamation, allgergy

Question 41

what is pallor

Answer 41

pale color, anemia, low blood presaure fear, anger

Question 42

what is juandice

Answer 42

yellow cast, liver disorder

Question 43

what is bronzing

Answer 43

steoriod hormones

Question 44

what are buruises

Answer 44

clotted blood beneath skin

Question 45

what is hair and what is the funtions

Answer 45

dead keratinzzied cells, warn of insects on skin hair on head protects against physical truma protect from heat loss shelid skin from sunlight

Question 46

What is hair and what does it contain

Answer 46

flexiable strands of dead keratinzied cells, hard kertain

Question 47

what is the shaft and root of hair

Answer 47

shaft that extends above scalp where keratinztion is complete root within scalp where keratinztion is still going on

Question 48

what are the 3 parts of the hair shaft

Answer 48

medulla, cortex,cuticle

Question 49

What is hair matrix

Answer 49

active dividing area of bulb that produces hair cells

Question 50

what is arrector pilli

Answer 50

small band of smooth muscle attached to follicle

Question 51

what is hair papilla

Answer 51

dermal tissue containing knot of capillaries that supplies nutrients