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A&P > Chapter 6: Integument System > Flashcards

Chapter 6: Integument System Flashcards

1
Q

Cutaneous membrane is also called the ___

A

Integument System

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2
Q

ncludes both the skin +
(nails, hair, sweat glands, and sebaceous glands).

A

Integument System

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3
Q

Epidermis - keratinized stratified squamous epithelium

Dermis -dense irregular connective tissue

A

Layers of the Integument

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4
Q

Layers of the Integument

A

Epidermis -keratinized stratified squamous epithelium

Dermis -dense irregular connective tissue

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5
Q

-Avascular

-gets nutrition from the capillaries in the dermal papillae

A

Epidermis

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6
Q

cell type: keratinocytes is in what integument layer

A

Epidermis

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7
Q

(the most abundant cell type)

A

keratinocytes

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8
Q

produce melanin
shields the DNA from UV radiation

A

melanocytes

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9
Q

shields the DNA from UV radiation

A

melanocytes

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10
Q

called Merkel cells (sensitive to touch)

A

tactile cells

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11
Q

what cell initiates the immune response?

+ in what layer of epidermis ?

A

epidermal dendritic cells (Langerhans cells)

(In Stratum Spinosum)

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12
Q

(only in “thick skin” of palms and soles)

A

stratum lucidum

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13
Q

Layers (strata) from deep to superficial:

A

Stratum basale
Stratum spinosum
Stratum granulosum
Stratum lucidum
Stratum corneum

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14
Q

Palms of hands, soles of feet
has five epidermal strata
has no hair follicles or sebaceous glands (but has sweat glands)

A

Thick skin

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15
Q

covers most of the body (lacks a stratum lucidum)
4 strata

A

Thin Skin

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16
Q

has no hair follicles or sebaceous glands (but has sweat glands)

A

Thick skin

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17
Q

2 Layers of Dermis

A

Papillary layer (Areolar CT)
Reticular layer (deeper) (Dense irregular CT)

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18
Q

Papillary layer of dermis is made of what type of tissue?

A

Areolar connective tissue

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19
Q

Reticular layer of dermis is made of what type of tissue

A

Dense irregular connective tissue

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20
Q

Papillary layer has projections called

A

, dermal papillae

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21
Q

has projections called , dermal papillae

A

Papillary layer

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22
Q

collagen and elastic fibers oriented in tension lines

A

Lines of Cleavage:

(in dermis)

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23
Q

pads and protects the body
acts as an energy reservoir
provides thermal insulation

A

Subcutaneous Layer

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24
Q

Areolar and adipose CT are apart of what Layer

A

Subcutaneous Layer

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25
Q

metabolic regulation: UV light promotes Vit D3 (cholecalciferol) production
-increases absorption of calcium and phosphate

A

Functions of the Integument

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26
Q

increases absorption of calcium and phosphate

A

Functions of the Integument

27
Q

free edge
nail body
nail root

A

3 parts of Nail Plate

28
Q

3 parts of Nail Plate

A

free edge
nail body
nail root

29
Q

Layer of living epidermis covered by nail body

A

Nail Bed

30
Q

(Structure of Nail)

active growing part of nail

A

Nail Matrix:

31
Q

(Structure of Nails)

A

Nail Bed: layer of living epidermis covered by nail body

Nail Matrix: active growing part
Lanula:
Nail folds
Eponychium (cuticle)
Hyponychium:

32
Q

Lanugo:
Vellus
Terminal Hair

A

Three types of hair

33
Q

Lanugo (Type of Hair 1 of 3))

A

fine
downy hair
appears in the last trimester

34
Q

fine
downy hair
appears in the last trimester

A

Lanugo (Type of Hair)

35
Q

\
fine hair
primary human hair
found on upper and lower limbs

A

Vellus:
(Type of hair)

36
Q

Vellus:
(Type of hair 2 of 3))

A

**Fine hair
**primary human hair
found on upper and lower limbs

(Peach fuzz)

37
Q

Terminal Hair
(Type of hair 3 of 3)

A

coarse
found on scalp, eyebrows, eyelashes and men’s beards
during puberty terminal hair replaces vellus hair in axillary and pubic regions

38
Q

Hair bulb
Root
Shaft

A

3 zones along length of a hair

39
Q

the portion of the hair deep to the skin surface

A

Root

40
Q

The portion of the hair that extends beyond the skin surfacet

A

Shaft

41
Q

Hair Matrix
Medulla
Arrector pili muscles
Cortex:
Cuticle:

A

(Hair Components)

42
Q

What hair component that produces more cells

A

Hair Matrix

43
Q

smooth muscles that can contract to elevate the hair (goosebumps)

A

Arrector pili muscles

44
Q

(For Exocrine Glands)

Two Most Common Types of Glands

A

Sweat & Sebaceous glands

45
Q

2 types of Sweat Glands

A

Merocrine
Apocrine sweat glands

46
Q

Type of Sweat Gland that:

-Secrete sweat

-most numerous and widely distributed
produced by exocytosis

A

Merocrine Glands

(Type of Sweat Gland)

47
Q

Type of Sweat Gland that:

-Discharge secretions into hair follicles in axillae, around nipples, in pubic & anal regions

-Start producing secretions during puberty

A

Apocrine sweat glands

48
Q

Type of Exocrine Gland :

Holocrine glands

Discharge sebum onto hair follicles, lubricant for skin & hair, bacterialcidal
active during puberty

A

Sebaceous glands

49
Q

Type of Exocrine Gland:

Located in the external ear canal
produce cerumen (earwax)
traps foreign material
lubricates the external acoustic meatus and eardrum

A

Ceruminous glands

50
Q

Where is the Ceruminous gland located

A

external ear canal

51
Q

-blood clot forms and leukocytes clean wound (macrophages & neutrophils)

-blood vessels re-grow and granulation tissue forms
(vascular CT initially forms in wound)

A

Stages of Wound Healing

52
Q

Dermis has how many layers?

A

2 (Papillary and Reticular)

53
Q

Lunula

A

Lunula

54
Q
A

Nail Folds

55
Q

Eponychium

A

Cuticle

56
Q

Hyponychium

A
57
Q

What is Ceremun

A

Earwax

58
Q

What cleans the wound after A blood Clot forms

A

leukocytes

59
Q

Collagen and Elastic Fibers are located in the

A

Dermis

60
Q

What tiissue forms after blood vessels regrow in the 2nd stage of Wound healing?

A

Granulation Tissue

61
Q

What tissue initially forms in the wound?

A

vascular CT

62
Q

metabolic regulation: UV light promotes Vit D3 (cholecalciferol) production

A

Function of the integument

63
Q

cholecalciferol is also known as

A

Vitamin D3

Function of the integument-metabolic regulation: UV light promotes Vit D3 (cholecalciferol) production

A&P (18 decks)

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