Chapter 5

Question 1

What is another name for hypodermis?

Answer 1

Subcutaneous tissue

Question 2

What are the thick layers of the skin?

Answer 2

stratum basale,
stratum spinosum
stratum granulosum
stratum lucidum
stratum corneum

Question 3

Do thick skin contain epidermal ridges?

Answer 3

Yes

Question 4

Does the layers of thick skin contain sweat glands?

Answer 4

Yes

Question 5

Does the layers of thick skin contain hair follicles?

Answer 5

No

Question 6

What cells make up the stratum luciderm?

Answer 6

6 layers of flattened clear, Dead Keratinocytes

Question 7

What are the layers of the skin?

Answer 7

epidermis, dermis, and the hypodermis

Question 8

What are the layers of thin skin?

Answer 8

Stratum basale
Stratum spinosum
Stratum granulosum
Thin stratum corneaum

Question 9

What is the function of stratum basale?

Answer 9

Produce keratinocytes
And
Bind the dermis to the epidermis

Question 10

What is the stratus corneum composed of?

Answer 10

25-30 layers of flatted dead keratinocytes

Question 11

What is the epidermis made of?

Answer 11

Keratinized stratified squamous epithelium

Keratinocytes
Melanocytes
Dendritic cells
Tactile epithelial cells

Question 12

What is keratin?

Answer 12

Tough fibrous protein that helps protect skin from abrasions heat chemicals etc

Question 13

What releases a water- repellent sealant that prohibits foreign loss or entry?

Answer 13

lamellar granules

Question 14

What produces lamellar granules

Answer 14

Keratinocytes

Question 15

What cells can protect against heat injuries to the deeper layers of the skin?

Answer 15

Keratinocytes

Question 16

What cell can protect against microbes entering deeper into the skin?

Answer 16

Keratinocytes

Question 17

What cell can prevent chemicals from going deeper into your skin?

Answer 17

Keratinocytes

Question 18

What does melanin do?

Answer 18

Absorbs damaging UV light and contributes to skin color

Question 19

Where can you find melanin?

Answer 19

Forming a protective cluster over the nucleus of keratinocytes to protect it

Question 20

What types of cells in the skin are a part of the immune response?

Answer 20

Dendritic cells

Question 21

Which layers of the skin are attached to the basement membrane?

Answer 21

Epidermis and dermis

Question 22

What is apoptosis?

Answer 22

the death of cells which occurs as a normal and controlled part of an organism’s growth or development.

Question 23

Where are tactile epithelial cells located?

Answer 23

Deepest layer of epidermis making contact with the sensory neuron

Question 24

Explain the process of keratinization

Answer 24

As new cells grow and expand, they are pushed to the surface where the poorer nutrient supply is. The cells harden and die. Many of these dead cells accumulate in the stratum corneum layer of the epidermis.

Question 25

What type of connective tissue makes up the dermis?

Answer 25

collagen and elastic fibers

Question 26

What is albanism?

Answer 26

An inherited inability of an individuals abily to produce melanin

Question 27

Sweat glands help to regulate________?

Answer 27

Body temperature

Question 28

What is it called when newly formed cells are slowly pushed to the surface and as they move from one layer to another they accumulate more keratin…..?

Answer 28

Keratinization

Question 29

What is lanugo? Where is it formed(or when)?

Answer 29

fine, soft, unpigmented hair that is often present in fetuses, newborns, and certain disease states

Question 30

What is vellus hair?

Answer 30

“Peach fuzz” short, fine, pale hairs barely visible. Present during childhood on the whole body except eye brows and hair until puberty

Question 31

What is terminal hair?

Answer 31

Long coarse heavy pigmented hairs (eyebrows, eyelashes, scalp etc)

Question 32

Which gland undergoes holocrine secretion?

Answer 32

Sebaceous glands

Question 33

What is the difference between eccrine and apocrine glands?

Answer 33

Apocrine glands have larger ducts and lumens

Question 34

What is the ceremonious gland?

Answer 34

Modified sweat glands in the external ear that produce a waxy lubricating secretion

Question 35

What is a cerumen made up of?

Answer 35

Combination of ceremonious and sebaceous glands

Question 36

What is a sebaceous gland?

Answer 36

“Oil glands” simple, branched acinar glands attached to the hair follicles that secrete sebum

Question 37

What is sebum and what is it made up of?

Answer 37

Oily substance secreted by sebaceous gland Mixture of triglycerides, cholesterol, proteins and inorganic salts

Question 38

What is a keloid scar?

Answer 38

A scar extending beyond the boundaries of the normal wound

Question 39

Know the components of the integumentary system

Answer 39

Question 40

What type of tissue makes up the oil and sweat glands?

Answer 40

Stratified cubodial

Question 41

What part of the skin generates fingerprints?

Answer 41

Epidermal ridges

Question 42

What is the reticular dermis?

Answer 42

BUNDLES of thick collagen fibers, fibroblasts and wandering cells

Question 43

What makes up the papillary layer?

Answer 43

Collegan and elastic fibers

Question 44

Know the differences

Answer 44

Know the differences

Question 45

Which is the stratum Lucidem?

Answer 45

Question 46

Which layer to new cells arise from?

Answer 46

Stratum basale

Question 47

Wheee in the hair root does melanin get deposited?

Answer 47

Hair bulb

Question 48

What is the spot called that will begin bleeding if you pick at it with a hangnail?

Answer 48

Eponychium

Question 49

Review this

Answer 49

Reveiw

Question 50

What is the mnemonic for the layers of the skin?

Answer 50

Come - corneum Let’s - lucidem Get- granulosum Sun - spinosum Burnt - basale

Question 51

What is another word for skin?

Answer 51

Cutaneous membrane

Question 52

Why is it more difficult for elderly people to thermoregulate?

Answer 52

They do not sweat as much and blood flow to dermis is reduced

Question 53

What is the strongest portion of the dermis?

Answer 53

Papillary layer

Question 54

If your body feels hot due to fever,exercise, or just because it’s hot, what do your blood vessels do?

Answer 54

Dilate

Question 55

What part of the dermis is most effected by lack of vitamin C?

Answer 55

Reticular layer

Question 56

what embryological tissue does the epidermis develop from?

Answer 56

ectoderm

Question 57

What color is the pigment eumelanin?

Answer 57

Black and brown

Question 58

What color is the pigment pho melanin?

Answer 58

Yellowish to reddish

Question 59

Contraction of the arrector pili muscle causes___________

Answer 59

Goose bumps

Question 60

Are sebaceous glands holocrine, apocrine, or merocrine?

Answer 60

Holocrine

Question 61

What do sebaceous glands secrete ?

Answer 61

Sebum

Question 62

How does the body synthesize vitamin D?

Answer 62

UV lights activate a precursor molecule

Question 63

What is jaundice?

Answer 63

Buildup of yellow pigment bilirubin