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Body > Mods3 > Flashcards

Mods3 Flashcards

1
Q

It is considered an organ because it consists all 4 types of tissues

A

skin

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2
Q

What are the two primary layers of skin?

A

epidermis and underlying dermis

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3
Q

The skin performs a variety of functions: Enumerate the five.

A

protection, sensation, thermoregulation, synthesis of vitamin D, excretion

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4
Q

provided against infection by microbes……

A

protection

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5
Q

nerve endings for touch

A

sensation

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6
Q

sweating and regulation of blood flow

A

thermoregulation

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7
Q

occurs in the skin

A

synthesis of vitamin D

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8
Q

salts and small amounts of waste (ammonia and urea) occur with sweat production.

A

excretion

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9
Q

What are the layers of the skin?

A

Epidermis
Dermis
Hypodermis

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10
Q

consists of keratinized stratified squamous epithelium

A

epidermis

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11
Q

What are the four cell types present?

A

Keratinocytes
Melanocytes
Langerhans cells
Merkel cells

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12
Q

produces keratin, hardens/waterproofs the skin

A

keratinocytes

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13
Q

produce melanin, protects cells from UV radiation

A

melanocytes

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14
Q

phagocytic macrophages that interact with blood cells during an immune response

A

Langerhans cells

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15
Q

Melanin from the melanocytes is transferred to the _____?

A

keratinocytes

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16
Q

… epidermal-dermal boundary
- association with nerve endings, sensory function

A

merkel cells

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17
Q

What are the several layers making up the epidermis?

A

Stratum corneum
Stratum lucidum
Stratum granulosum
Stratum spinosum
Stratum Basale(stratum germinativum)

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18
Q

many layers of dead, anucleate keratinocytes

A

stratum corneum

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19
Q

two or three layers of anucleate cells, thick skin in foot and palms

A

stratum lucidum

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20
Q

two to four layers of cells held together by desmosomes

A

stratum granulosum

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21
Q

eight to ten layers of cells connected by desmosomes.

A

stratum spinosum

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22
Q

a single layer of columnar cells actively dividing by mitosis

A

stratum Basale(stratum germinativum)

23
Q

What is the second layer of the skin?

A

dermis

24
Q

What are the two layers of the dermis?

A

the papillary and reticular layer

25
Q

the outer layer of areolar connective tissue with fingerlike projections

A

papillary layer

26
Q

dense irregular connective tissue

A

reticular layer

27
Q

fingerlike projections are called?

A

dermal papillae

28
Q

storage site of most body fat

A

hypodermis

29
Q

the third layer of the skin?

A

hypodermis

30
Q

provides thermal insualtion and absorbs shocks

A

hypodermis

31
Q

elongated filaments of keratinized epithelial cells

A

hair

32
Q

hair that is visible in skin

A

hair shaft

33
Q

penetrates the skin(epidermis and dermis)

A

hair root

34
Q

sheath that surrounds the hair in the skin

A

hair follicle

35
Q

base of the hair follicle

A

bulb

36
Q

bottom of the hair follicle

A

matrix

37
Q

smooth muscle attached to hair follicle

A

arrector pili

38
Q

keratinized epithelial cells

A

nails

39
Q

secrete sweat

A

sudoriferous (sweat) glands

40
Q

Four kinds of sudoriferous sweat glands (4)

A

merocrine, apocrine glands, ceruminous glands, mammary glands

41
Q

secrete watery solution

A

merocrine, apocrine glands, ceruminous glands, mammary glands

42
Q

armpits and pubic regions

A

apocrine glands

43
Q

cerumen(earwax)

A

ceruminous glands

44
Q

milk

A

mammary glands

45
Q

secrete sebum

A

sebaceous (oil) glands

46
Q

occur the most skin surfaces and secrete a watery solution

A

merocrine glands

47
Q
  • a common type of skin cancer
  • slow growing
  • lesions begin as painless, hard, raised nodules
  • will metastasize
A

Squamous cell carcinoma

48
Q
  • most common type of skin cancer
  • originates in cells at base of epidermis
  • lesions begins as small raised areas erode in center, bleed, and crust over
    -less likely to mestasitize
A

basal cell carcinoma

49
Q

most serious form of skin cancer
may develop from benign

A

malignant melanoma

50
Q

a rare form of skin cancer frequently associated with aids and other….

A

Kaposi sarcoma

51
Q

The color of the hair is determined by the pigments absorbed from the ___

A

Melanocytes

52
Q

Goose bumps

A

Arrector pili

53
Q

The semilunar lighter region of the nail, the ____ is the area of new nail growth.

A

Lunula

Body (8 decks)

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