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PHARM 204 (Final) > Integumentary > Flashcards

Integumentary Flashcards

1
Q

Epidermis

A

Protection
Permeability
Sensory

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2
Q

Dermis (Papillary Layer)

A

Superficial Dermis
- Nourishes Epidermis
- Capillaries and Axons
- Physical attaches to epidermis

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3
Q

Dermis (Reticular Layer)

A

Deep Dermis
- Dense irregular connective tissue
- Hair follicles
- Sweat glands
- Sebaceous glands

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4
Q

Hypodermis

A

Subcutaneous Layer
- Adipose Tissue
- Major Blood Vessels

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5
Q

Cutaneous Plexus

A

Artery / Vein
- Regulates temperature
- Maintain constant flow to tissues

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6
Q

Subpapillary Plexus

A

Smaller blood vessels

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7
Q

Hair Follicles

A

Protect skull
Delicate touch sensations

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8
Q

Exocrine Glands

A

Thermoregulation
Excrete Wastes
Lubricate epidermis

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9
Q

Nails

A

Protect and support fingers and toes

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10
Q

Epidermis Cells (Keratinocytes)

A

Produces Keratin
- Tough Protein

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11
Q

Epidermis Cells (Melanocytes)

A

Produce Melanin
- Pigment

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12
Q

Epidermis Cells (Merkel Cells)

A

Sensory Cells

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13
Q

Epidermis Cells (Langerhans Cells)

A

Wandering Macrophages

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14
Q

Epidermis Layers (Deepest to Superficial)

A

Stratum Basale
Stratum Spinosum
Stratum Granulosum
Stratum Lucidum
Stratum Corneum

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15
Q

Stratum Basale

A

Basal Cells
- Melanocytes
- Undergo active reproduction
- Deepest Layer

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16
Q

Stratum Spinosum

A

Langerhans Cells
- Keratinocytes bound by desmosomes
- Tonofibrils (Collagen) associated with desmosome

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17
Q

Stratum Granulosum

A

Keratinocytes
- Keratin production
- Excess produces calluses

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18
Q

Stratum Lucidum

A

Palms of Hands
Soles of Feet

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19
Q

Stratum Corneum

A

Interlocking, Dehydrated, Dead Cells
- Physical Barrier
- Superficial Layer

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20
Q

Thick Skin
- How many layers?
- Where?

A
  • 5 Layers
  • Palm of Hands, Soles of Feet
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21
Q

Thin Skin
- How many layers?
- Where?

A
  • 4 Layers (No Stratum Lucidum)
  • Found on rest of body besides palm and sole
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22
Q

Dermal Ridges

A

Fingerprints
- Stratum Germinativum forms dermal ridges
- Ridges extend into dermis

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23
Q

Dermal Papillae

A

Ridges formed from Stratum Germinativum which extend into dermis

24
Q

Factors of Epidermis that control skin colour

A

Dermal Blood Supply
Melanin and Carotene
Thickness of Stratum Corneum

25
Q

Carotene

A

Can convert to Vit A
- Vit A needed for synthesis of visual pigments in photoreceptors of eye

26
Q

Melanin

A

Produced and stored in melanosomes within melanocytes
- Creates natural skin colour to protect against UV

27
Q

Melanocyte Activity

A

Exposure to too much UV causes enough stress to trigger a protective response
–> Triggers Melanin production

28
Q

Interwoven Collagen Fibers

A

Tensile Strength

29
Q

Elastic Fibers

A

Stretch and Recoil

30
Q

Where is hair found?

A

Everywhere except:
- Palm
- Soles
- Side of fingers/toes
- Lips
- Parts of Genitalia

31
Q

Arrector Pili Muscle

A

Contraction of these muscles result in goose bumps

32
Q

Root Hair Plexus

A

Nerves that detect movement of hair and send impulses to brain (For Sensory)

33
Q

Function of Hair

A
  • Protect from UV
  • Insulation
  • Guards entrance to eye/nose
  • Sensory
34
Q

Types of Hair (Lanugo)

A

Unpigmented Hair
- Covers fetus after 3 months of development

35
Q

Types of Hair (Vellus)

A

Covers most of body

36
Q

Types of Hair (Terminal)

A

Covers Head
Makes up the eyebrows
Makes up the eyelashes

37
Q

Hair Colour Controlled by?

A

Melanin
- More Melanin = Darker Hair
- Lack of Melanin + Air Bubbles in Hair Shaft –> Grey Hair

38
Q

Hair Cycle

A

Each Hair Follicle undergoes a hair growth cycle

Club hair is lost and a replacement is produced

39
Q

Male/Female Pattern Baldness cause?

A

Change in sex hormones

40
Q

Skin Gland Functions

A
  • Lubricate Epidermis
  • Excrete waste
  • Thermoregulation
41
Q

Apocrine Glands

A

Sweat Gland that produces odorous sweat secretion, may be used for communication
- Complex Composition

42
Q

Eccrine Glands

A

AKA Merocrine
Sweat Gland that produces sweat for cooling (sensible perspiration)

  • Found all over body
  • Lots in Palms and Soles
  • Watery Composition
43
Q

Ceruminous Glands

A

Sweat Gland
- Special Type of Apocrine Gland
- Produce Cerumen (Earwax)
- Provide protection for ear

44
Q

Mammary Glands

A

Sweat Gland
- Type of Apocrine Gland
- Produce milk
- Controlled by pituitary gland and hormones

45
Q

Sebaceous Glands

A

Secretes Sebum
- Lubricates Skin
- Found everywhere besides palms and soles
- Lots found on head, forehead, upper back

46
Q

Acne (Cause?)

A

Blockage Sebaceous Glands

47
Q

Typical Sebaceous Gland

A

Secretes Sebum into Hair Follicles
- Lubricates Hair Follicle

48
Q

Sebaceous Follicles

A

Large Sebaceous Glands
- Lubricates Skin Directly

49
Q

Folliculitis

A

Bacteria causes inflammation of Sebaceous Follicles

50
Q

Nail Body

A
51
Q

Nail Root

A
52
Q

Lateral Nail Groove

A
53
Q

Eponychium

A
54
Q

Hyponychium

A
55
Q

Lunula

A

F

56
Q

Free Edge

A
57
Q

Proximal Nail Fold

A

PHARM 204 (Final) (14 decks)

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