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Skin :)

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Quiz on Skin :), created by Plymouth Med on 27/01/2018.
Plymouth Med
Quiz by Plymouth Med, updated more than 1 year ago
Plymouth Med
Created by Plymouth Med almost 7 years ago
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Resource summary

Question 1

Question
Types of the epidermis' cells [blank_start]Melanocytes[blank_end] produce pigment. Merkel cells, also known as [blank_start]tactile[blank_end] [blank_start]epithelial[blank_end] cells, attach to [blank_start]sensory[blank_end] nerve ends creating "[blank_start]light[blank_end] [blank_start]touch[blank_end]" receptors. Most superficial keratinocytes are dead. They begin in the stratum [blank_start]basale[blank_end] and are pushed to the stratum [blank_start]corneum[blank_end].
Answer
  • Melanocytes
  • tactile
  • epithelial
  • light
  • touch
  • sensory
  • basale
  • corneum

Question 2

Question
Eczema is a pathology caused by problems with...
Answer
  • fillagrin
  • desosomes
  • keratohyalin granules
  • keratin

Question 3

Question
Which of these layers contains cells with cornified cell envelopes?
Answer
  • stratum corneum
  • stratum basale
  • stratum lucidum
  • stratum granulosum
  • stratum spinosum

Question 4

Question
Filaggrin helps with the accumulation of keratin.
Answer
  • True
  • False

Question 5

Question
In the stratum [blank_start]granulosum[blank_end], lipids form [blank_start]lamellar[blank_end] [blank_start]bodies[blank_end].
Answer
  • lamellar
  • bodies
  • granulosum

Question 6

Question
Stratum basale makes basal keratinocytes, which in turn release the products
Answer
  • Keratin 1
  • Keratin 10
  • Keratin 5
  • Keratin 14
  • Keratin 8
  • Keratin 20

Question 7

Question
Which keratins are associated with stratum spinosum?
Answer
  • Keratin 2
  • Keratin 1
  • Keratin 10
  • Keratin 15
  • KEratin 14
  • Keratin 5

Question 8

Question
Stratum Granulosum is the most prolific with constantly dividing stem cells.
Answer
  • True
  • False

Question 9

Question
Mutation of keratin [blank_start]5[blank_end] and [blank_start]1[blank_end][blank_start]4[blank_end] leads to (EBS) [blank_start]Epidermolysis[blank_end] [blank_start]Bullosa[blank_end] [blank_start]Simplex[blank_end].
Answer
  • Epidermolysis
  • Bullosa
  • Simplex
  • 5
  • 1
  • 4

Question 10

Question
Mutation of keratin [blank_start]1[blank_end] and [blank_start]1[blank_end][blank_start]0[blank_end] leads to [blank_start]epidermolytic[blank_end] [blank_start]hyperkeratosis[blank_end] (EHK.)
Answer
  • 1
  • 1
  • 0
  • epidermolytic
  • hyperkeratosis

Question 11

Question
Which keratins are involved with stratum granulosum?
Answer
  • Keratin 2e
  • Keratin 9
  • Keratin 1
  • Keratin 10
  • Keratin 2h
  • Keratin 14

Question 12

Question
Mutation of keratin [blank_start]2e[blank_end] leads to (IBS) [blank_start]Ichthyosis[blank_end] [blank_start]Bullosa[blank_end] of [blank_start]Slemens[blank_end]. Mutation of keratin [blank_start]9[blank_end] leads to (EPPK) [blank_start]epidermolytic[blank_end] [blank_start]palmoplantar[blank_end] [blank_start]keratoderma[blank_end].
Answer
  • Ichthyosis
  • Bullosa
  • Slemens
  • epidermolytic
  • palmoplantar
  • keratoderma
  • 9
  • 2e

Question 13

Question
What makes up the cornified cell envelope?
Answer
  • Involucrin
  • SPRs
  • Loricrin
  • Keratin
  • Fillagrin

Question 14

Question
Lipids are linked to [blank_start]involucrin[blank_end] and contribute to the [blank_start]epidermal[blank_end] [blank_start]permeability[blank_end] [blank_start]barrier[blank_end].
Answer
  • involucrin
  • epidermal
  • permeability
  • barrier

Question 15

Question
Parts of the cornified cell envelope of the epidermis
Image:
Screen Shot 2018 01 27 At 10.50.45 Pm (binary/octet-stream)
Answer
  • Lipid
  • Involucrin
  • SPR
  • Loricrin
  • Keratin
  • Filaggrin

Question 16

Question
Skin has more permeable tight junctions than mucosa does.
Answer
  • True
  • False

Question 17

Question
What is true regarding mucosa?
Answer
  • lines the interior of hollow organs
  • more water resistant
  • less water resistant
  • contains melanocytes
  • contains integrin

Question 18

Question
[blank_start]Melanin[blank_end] is influenced by the amount of [blank_start]UV[blank_end] light hitting the skin. Melanin, therefore, protects the skin from [blank_start]UV[blank_end] [blank_start]radiation[blank_end]. Too much exposure to the [blank_start]sun[blank_end], the main source of such light, can lead to [blank_start]sunburn[blank_end].
Answer
  • Melanin
  • UV
  • UV
  • radiation
  • sun
  • sunburn

Question 19

Question
Sunshine helps promote the metabolism of Vitamin D into useable forms.
Answer
  • True
  • False

Question 20

Question
the Skin pH is low (like a pH of 3)
Answer
  • True
  • False

Question 21

Question
Cleavage lines have clinical relevance in that...
Answer
  • they are useful guideance for breastfeeding/ latch-on clinics
  • surgeons use them, particularly in cosmetic surgeryc
  • guidelines for distinguishing dermatome boundaries
  • guidelines for distinguishing myotome boundaries

Question 22

Question
Collagen fibers are all arranged in unidirectional bundles in both dense and loose connective tissue.
Answer
  • True
  • False

Question 23

Question
The dermis has 3 different embryological origins. The dermis of the [blank_start]body[blank_end] and [blank_start]limbs[blank_end] is from the lateral plate of the mesoderm. The dermis of the [blank_start]back[blank_end] is from the [blank_start]paraxial[blank_end] [blank_start]mesoderm[blank_end], which is a specific part of the [blank_start]somite[blank_end]. The dermis of the [blank_start]face[blank_end] and [blank_start]neck[blank_end] is from the [blank_start]neural[blank_end] [blank_start]crest[blank_end] [blank_start]cells[blank_end].
Answer
  • body
  • limbs
  • paraxial
  • mesoderm
  • somite
  • neural
  • crest
  • cells
  • face
  • neck
  • back

Question 24

Question
The ectoderm becomes the epidermis, which heals through repair.
Answer
  • True
  • False

Question 25

Question
The mesenchyme becomes dermis and heals via repair.
Answer
  • True
  • False

Question 26

Question
What is this pathological phenomenon known as?
Image:
Screen Shot 2018 01 28 At 6.56.29 Pm (binary/octet-stream)
Answer
  • Finger clubbing

Question 27

Question
Nails are nothing more but hard plates of [blank_start]keratin[blank_end]. They are strong due to [blank_start]high[blank_end]-[blank_start]sulfur[blank_end] [blank_start]matrix[blank_end] [blank_start]proteins[blank_end].
Answer
  • keratin
  • high
  • sulfur
  • matrix
  • proteins

Question 28

Question
In the blood vessels, [blank_start]precapillary[blank_end] [blank_start]sphincters[blank_end] help with thermoregulation. When these [blank_start]contract[blank_end], heat is [blank_start]conserved[blank_end] as more blood is directed to the internal organs. When these [blank_start]relax[blank_end], heat is [blank_start]lost[blank_end] as there is more blood flow in the peripheries
Answer
  • relax
  • contract
  • precapillary
  • sphincters
  • conserved
  • lost

Question 29

Question
What is the vasculature of the skin?
Image:
Screen Shot 2018 01 28 At 7.20.45 Pm (binary/octet-stream)
Answer
  • Arteriovenous anastamosis
  • Glomus body
  • Venous drainage
  • Arterial supply
  • Hypodermic vasculature
  • Cutaneous plexus
  • Papillary plexus
  • Papillary loops

Question 30

Question
Sweat glands produce more than just sweat.
Answer
  • True
  • False

Question 31

Question
Apocrine glands are notably concentrated in the...
Answer
  • arm pits
  • pubic regions
  • breast areolae
  • scalp
  • torso/back
  • ante cubital fossa
  • popliteal fossa

Question 32

Question
Sweat glands are branched tubular glands.
Answer
  • True
  • False

Question 33

Question
Apocrine glands undergo change and function better during puberty
Answer
  • True
  • False

Question 34

Question
Sweat/discharge is secreted into nearby [blank_start]hair[blank_end] [blank_start]follicles[blank_end]. Sweat/discharge has a distinctive smell (bad smell) due to interactions with [blank_start]commensal[blank_end] [blank_start]bacteria[blank_end] on the skin.
Answer
  • hair
  • follicles
  • commensal
  • bacteria

Question 35

Question
Sweat glands are known as [blank_start]apocrine[blank_end] glands or [blank_start]eccrine[blank_end] glands (more commonly associated with sweat glands,) depending on their location within the body.
Answer
  • apocrine
  • eccrine

Question 36

Question
Eccrine glands work via [blank_start]sodium[blank_end] [blank_start]ion[blank_end] [blank_start]pumps[blank_end]. The [blank_start]sodium[blank_end] is pumped into the sweat duct, which lead to [blank_start]passive[blank_end] [blank_start]water[blank_end] [blank_start]diffusion[blank_end].
Answer
  • sodium
  • ion
  • pumps
  • sodium
  • passive
  • water
  • diffusion

Question 37

Question
[blank_start]Androgens[blank_end] cause thicker and more rough hair growth in the [blank_start]axillary[blank_end] and [blank_start]pubic[blank_end] regions of both sexes.
Answer
  • axillary
  • pubic
  • Androgens

Question 38

Question
Skin Affected Lymphoid (SALT) tissue allows the skin to do its job as one of our primary defenses of the immune system.
Answer
  • True
  • False

Question 39

Question
What is true regarding the dermis?
Answer
  • intracellular matrix
  • extracellular matrix
  • contains nociceptors
  • contain sensory receptors
  • contains proprioceptors
  • contains hair follicles
  • sebaceous glands
  • eccrine glands
  • apocrine glands
  • vasculature

Question 40

Question
Which of these are sensory receptors?
Answer
  • Pacinian corpuscles
  • Ruffini corpuscles
  • Meisner's corpuscles
  • Merkel's disks
  • Free nerve endings
  • Golgi tendon bodies

Question 41

Question
Importantance regarding Pacinian Corpuscles: Detects [blank_start]deep[blank_end] pressure Detects [blank_start]fast[blank_end] vibrations Myelinated? [blank_start]Yes[blank_end] [blank_start]Low[blank_end] threshold [blank_start]Fast[blank_end] adaptation [blank_start]A[blank_end] [blank_start]Beta[blank_end] axons
Answer
  • deep
  • fast
  • Yes
  • Low
  • Fast
  • Beta
  • A

Question 42

Question
What is important regarding Meisner's corpuscles? [blank_start]Light[blank_end] touch [blank_start]slow[blank_end] vibrations [blank_start]A[blank_end] [blank_start]beta[blank_end] axons [blank_start]low[blank_end] threshold [blank_start]fast[blank_end] adaptation Myelinated? [blank_start]Yes[blank_end]
Answer
  • Light
  • beta
  • A
  • slow
  • low
  • fast
  • Yes

Question 43

Question
Meisner's corpuscles can be found in the sensitive areas.
Answer
  • True
  • False

Question 44

Question
What is one of the earliest signs of damage to the meisner's corpuscles?
Answer
  • cannot feel the clothes they're wearing
  • feel constant sense of "shakiness"
  • slow reaction times
  • cannot feel acute pain (needle pricks)

Question 45

Question
What is important regarding Ruffini Corpuscles? Myelinated? [blank_start]Yes[blank_end] Detects [blank_start]temperature[blank_end] Detects [blank_start]stretch[blank_end] [blank_start]A[blank_end] [blank_start]beta[blank_end] axons [blank_start]Spindle[blank_end] shaped [blank_start]Low[blank_end] threshold [blank_start]Slow[blank_end] adaptation [blank_start]Prolonged[blank_end] response
Answer
  • Yes
  • temperature
  • stretch
  • beta
  • A
  • Spindle
  • Low
  • Slow
  • Prolonged

Question 46

Question
What is important regarding hair follicle receptors? [blank_start]A[blank_end] [blank_start]beta[blank_end] axons [blank_start]Fast[blank_end] adaptation [blank_start]Bends[blank_end] and [blank_start]straightens[blank_end] the hair Is right below the [blank_start]sebaceous[blank_end] [blank_start]gland[blank_end], where it is wrapped around the hair
Answer
  • beta
  • A
  • Fast
  • Bends
  • straightens
  • sebaceous
  • gland

Question 47

Question
What is important about Merkel's disc? in [blank_start]hairless[blank_end] skin in the [blank_start]basal[blank_end] layer of skin detects [blank_start]prolonged[blank_end] pressure [blank_start]A[blank_end] [blank_start]beta[blank_end] axons [blank_start]low[blank_end] threshold [blank_start]slow[blank_end] adaptation [blank_start]small[blank_end] receptive field
Answer
  • hairless
  • basal
  • prolonged
  • beta
  • A
  • low
  • slow
  • small

Question 48

Question
What is important regarding free nerve endings? Detects [blank_start]temperature[blank_end] Detects touch Detects [blank_start]pain[blank_end] [blank_start]A[blank_end] [blank_start]beta[blank_end] axons [blank_start]C[blank_end] axons [blank_start]slow[blank_end] adaptation
Answer
  • temperature
  • pain
  • beta
  • A
  • C
  • slow

Question 49

Question
Sebaceous glands are holocrine glands
Answer
  • True
  • False

Question 50

Question
[blank_start]Holocrine[blank_end] glands are glands that are composed of the products they expel.
Answer
  • Holocrine

Question 51

Question
Sebaceous glands consist of [blank_start]lipids[blank_end].
Answer
  • lipids

Question 52

Question
Hormonal balance of sebaceous gland: During puberty, [blank_start]acinar[blank_end] cells become more active. [blank_start]Estrogen[blank_end] inhibits acne [blank_start]Androgens[blank_end] promote acne The more official name for acne is [blank_start]acne[blank_end] [blank_start]vulgaris[blank_end].
Answer
  • acinar
  • Estrogen
  • Androgens
  • acne
  • vulgaris

Question 53

Question
Label the parts of thermoregulation and homeostasis cycle?
Image:
Screen Shot 2018 01 28 At 10.15.09 Pm (binary/octet-stream)
Answer
  • hypothalamus
  • sweat
  • dilate
  • set
  • blood
  • point
  • glands
  • vessels
  • hypothalamus
  • shivering
  • skeletal
  • increases
  • rises
  • turns off
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