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Kin 1131 > Integumentary System (Lecture 1) > Flashcards

Integumentary System (Lecture 1) Flashcards

1
Q

The integumentary system is Organ systms composed of

A

skin, hair, oil, sweat glands, nails, and sensory receptors

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2
Q

The integumentary system Layers

A

Epidermis, Dermis and Hypodermis (sub q layer)

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3
Q

The integumentary system - Skin Basic functions

A 
thermoregulation,
blood reservoir
protection 
cutaneous and sensations 
excretion and absorption 
synthesis of Vit D
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4
Q

The Layers of the skin - Epidermis: TIssue type/composition?

A

Epithelial

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5
Q

The Layers of the skin - Epidermis: Cells

A

keratinocytes, melanocytes,
Intraepidermal Macrophages (aka Langerhans)
Tactile Epithelial cells (aka merkel cells)

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6
Q

The Number of Melanocytes is the same in everyone the difference in skin color is from?

A

the amount of pigment the melanocyte produces

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7
Q

What are macrophages? what do they do? what are they apart of?

A

eat cellular debris. They are also part of the immune response

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8
Q

Epidermis Layers: (Stratum ______ 1-5) name all 5 layers in descending (deeper layer) order.

A 
corneum
lucidum 
granulosum
spinosum
basale
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9
Q

Epidermis // Stratum Corneum tissue characteristics ( tissue type cell contents)

A

stratified squamous

keratinocytes containing keratin

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10
Q

Epidermis // Stratum Lucidum characteristics ( tissue type cell contents)

A

only present in thicker skin,

clear dead keratinocytes and keratin

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11
Q

Epidermis // Stratum Granulosum characteristics ( tissue type cell contents)

A

cells release a lipid-rich water repellant secretion

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12
Q

Epidermis // Stratum Spinosum Characteristics ( tissue type cell contents)

A

location of intraepidermal macrophage cells (involved in phagocytosis)

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13
Q

Epidermis // Stratum Basale Characteristics ( tissue type cell contents)

A

Simple cuboidal or columnar
stem cells - cell division
Melanocytes & tactile epithelial cells

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14
Q

Dermis - Tissue composition

A

Dense irregular (Connective tissue)

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15
Q

Dermis - Cells

A

Fibroblasts
macrophages and mast cells
White blood cells: Eosinophils and Neutrophils

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16
Q

Dermis Contains?

A

Contains blood vessels, nerves, hair follicles and glands

17
Q

Dermis made from connective tissue or epithelial tissue?

A

connective tissue

18
Q

is epithelial tissue of the epidermis well vascularised? is the Dermis?

19
Q

Innate immunity is the _______ of defense

A

1st line of defense Skin

20
Q

Dermis Layers

A 
Papillary Region (Superficial) 
Reticular Region (
21
Q

Dermis layers: Papillary Region - What fibers does it consist of

A

Collagen and Elastic Fibers

22
Q

Dermis layers: Papillary Region - Surface area is in contact with _______ and is increased by the _______ papillae.

A

Epidermis,

Dermal papillae

23
Q

Dermis layers: Papillary Region - Contains meissner corpuscles that ________ ______ and/or free nerve ending/s that also detect _______ and ______

A

detect touch

touch and temperature

24
Q

Dermis layers: (deeper region of dermis) Reticular Region - What fibers does it consist of

A

Thick collagen fibers create tension lines (from natural lines of pull from muscle attachments

25
Q

Dermis fact - do women have a thinner dermis? if so what would you call the dimples?

A

yes

cellulite

26
Q

Epidermal ridges create what?

A

Fingerprints

27
Q

Dermis layers: Hypodermis - is it part of the skin?

28
Q

Dermis layers: Hypodermis - Tissue composition?

A

Varies from Areolar to Adipose

29
Q

Dermis layers: Hypodermis Function

A

storage site for fat an blood vessels that supply and drain capillaries of the skin

30
Q

Integumentary System Accessory Structures - Hair what are the specific parts of the hair (portions and function)
the shaft is?
the root is? and is located in?
the follicle is for?

A

shaft (superficial portion)
root (deep portion LOCATED dermis or hypodermis)
follicle - sensory preception

31
Q

Integumentary System Accessory Structures - Glands: what is the oil gland called?

32
Q

Integumentary System Accessory Structures - Glands: Sebaceous (oil) gland function

A

prevents dryness, inhibits bacterial growth

33
Q

Integumentary System Accessory Structures - Glands: 3 Sweat(sudoriferous) Gland names and purpose

A

Eccrine, (thermoregulation)
Apocrine, Emotional sweating ( much worse body odor)
(just women)Mammary - Specialize sudoriferous gland

34
Q

_______ detect touch stimuli and transmit these signals to sensory nerves.

A

Merkel Cells

35
Q

Hair growth occurs when cells in the ______, at the base of the bulb, divide and push upwards

A

Hair matrix

36
Q

when scarring occurs after a deep wound, healed tissue __________

A

looses its normal function

37
Q

during integumentary innervation, sensory receptors in the skin pass signals to?

A

Nerves of the PNS

38
Q

Blood Vessels carry ______ to the site of tissue damage, causing a fibrous clot to form

Kin 1131 (42 decks)

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