Chapter 5 - integumentary system practice quiz

1. 1(check all that apply)
   What are the functions of the integumentary system?

   1. Aprotects the body from environment
   2. Btransports nutrients from the skin
   3. Cthermoregulation
   4. Dprovides sensory information
   5. Eexcretion & absorption
   6. Fsynthesizes vitaman D & stores blood
   7. Gsecretes hormones from glands
2. 2The thickened region of the stratum corneum UNDER THE FREE EDGE is called:

   

   1. Aeponychium
   2. Bhyponychium
   3. Cnail matrix
   4. Dnail body
3. 3What is the correct order of the dermis, deep to superficial?

   1. Astratum basale, stratum corneum, stratum granulosum, stratum spinosum, stratum lucidum
   2. Bstratum lucidum, stratum granulosum, stratum basale, stratum spinosum, stratum corneum
   3. Cstratum corneum, stratum lucidum, stratum basale, stratum granulosum, stratum spinosum
   4. Dstratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum
4. 4Skin is composed of which kind of tissue?

   1. AEpithelial
   2. Bconnective
   3. Cmuscular
   4. Dskeletal
   5. EAll of the above
5. 5Sebum contains antibacterial agents.

   1. AVerdadero
   2. BFalso
6. 6The [blank_start]epidermis[blank_end] is made of keratinized [blank_start]stratified[blank_end] [blank_start]squamous[blank_end] epithelium.
   The [blank_start]dermis[blank_end] is primarily [blank_start]connective[blank_end] tissue, with nervous and muscle tissue.
   The [blank_start]hypodermis[blank_end] is formed of areolar and adipose tissue. This is not part of skin.

   1. Aepidermis
   2. Bdermis
   3. Cmicrodermis
   4. Dstratified
   5. Esimple
   6. Fcuboidal
   7. Gcolumnar
   8. Hsquamous
   9. Idermis
   10. Jepidermis
   11. Khypodermis
   12. Lconnective
   13. Mskeletal
   14. Nhypodermis
   15. Oepidermis
   16. Pdermis
7. 7[blank_start]Keratinocytes[blank_end] make up 90% of the epidermis. They produce [blank_start]keratin[blank_end], contain lamellar granules which release a waterproof sealant and [blank_start]melanocytes[blank_end], which produce [blank_start]melanin[blank_end] in the [blank_start]basal[blank_end] layer, make up 8% of the epidermis.

   1. ALangerhans cells
   2. BMelanocytes
   3. CStem cells
   4. DKeratinocytes
   5. Ekeratin
   6. Fmelanin
   7. Gmacrophages
   8. Hkeratinocytes
   9. Imelanocytes
   10. Jlangerhans cells
   11. Ktactile epithelial cells
   12. Ltouch sensations
   13. Mkeratin
   14. Nmelanin
   15. Obasal
   16. Pgranulosum
   17. Qcorneum
   18. Rspinosum
8. 8Intraepidermal macrophages, located in the stratum spinosum, are also called

   1. AKeratinocytes
   2. BMelanocytes
   3. CLangerhans cells
   4. DTactile epithelial cells
9. 9Merkel cells are also known as tactile epithelial cells.

   1. AVerdadero
   2. BFalso
10. 10What are all true about the stratum basale layer?

    1. AContains melanocytes
    2. BContain stem cells
    3. CIs the deepest layer
    4. DAre a single row of cuboidal OR columnar keratinocytes
    5. EAll of the above

11. 11The stratum [blank_start]spinosum[blank_end] layer is a metabolically active layer which consists of 8 to 10 layers held together by [blank_start]desmosomes[blank_end]. Keratinocytes synthesize and "fill up" with keratin and melanin is transferred to keratinocytes by [blank_start]endocytosis[blank_end] from nearby melanocytes.

    1. Acorneum
    2. Bbasale
    3. Clucidum
    4. Dspinosum
    5. Eendocytosis
    6. Fexocytosis
    7. Gmacrophages
    8. Hsudoriferous
    9. Idesmosomes
    10. Jhemidesmosomes
    11. Ktight junctions
    12. Lgap junctions
12. 12The stratum granulosum layer

    1. Ais 3 - 5 layers
    2. Bcontains lamellar granules which release lipid-rich secretions that repel water
    3. Cis the transitional layer between the dead cells and active layer
    4. Ddiffuses oxygen from the dermis
    5. EAll of the above
13. 13What is FALSE about the stratum lucidum layer?

    1. AIt is only present in thin skin.
    2. BIt contains 3 to 5 layers of clear flat cells.
    3. CIt has large amounts of keratin.
    4. DConsists of dead skin cells.
14. 14Thin skin has a stratum lucidum.

    1. AVerdadero
    2. BFalso
15. 15Choose the correct order of the growth of the epidermis.

    1. A1) Stem cells divide to produce keratinocytes.
       2) Keratinocytes move further from blood supply and receivev less nutrients, then die.
       3) Keratinocytes are pushed towards the surface and fill with keratin.
    2. B1) Keratinocytes are pushed towards the surface and fill with keratin.
       2) Stem cells divide to produce keratinocytes.
       3) Keratinocytes move further from blood supply and receive less nutrients, then die.
    3. C1) Keratinocytes move further from blood supply and receive less nutrients, then die.
       2) Keratinocytes are pushed towards the surface and fill with keratin.
       3) Stem cells divide to produce keratinocytes.
    4. D1) Stem cells divide to produce keratinocytes.
       2) Keratinocytes are pushed towards the surface and fill with keratin.
       3) Keratinocytes move further from blood supply and receive less nutrients, then die.
16. 16The dermis consists of collagen, elastic fibers and

    1. Afibroblasts
    2. Bmacrophages
    3. Cadipose cells
    4. Dhair, glands, nerves and blood vessels
    5. EAll of the above
17. 17The region(s) of the dermis consists of

    1. A1 region: the dermapapillary region
    2. B2 regions: the papillary region and reticular region
    3. C3 regions: keratin region, papillary regions and reticular region
    4. D4 regions: a superior & inferior papillary region and a superior & inferior reticular region
18. 18The dermis is divided into the [blank_start]papillary[blank_end] region being the top [blank_start]20[blank_end]% and the [blank_start]reticular[blank_end] region being the bottom [blank_start]80[blank_end]%.

    1. A20
    2. B80
    3. Cpapillary
    4. Dreticular
19. 19The [blank_start]dermal[blank_end] [blank_start]papillae[blank_end] are the finger-like projections which increase the surface area to provide a strong anchor of epidermis to dermis.

    1. Adermal
    2. Bepidermal
    3. Ctissue
    4. Dridge
    5. Epapillae
20. 20When the skin heals itself basal cells

    1. Adivide and separate across the wound.
    2. Bdifferentiate into melanocytes and the epidermis moves upward.
    3. Cdivide and migrate across the wound.
    4. Dconnect by desmosomes and hemidesmosomes
21. 21[blank_start]Contact[blank_end] inhibition is when cells touch each other and [blank_start]stop[blank_end] regenerating.

    1. Astop
    2. BContact
22. 22Scars form when the wound/injury extends to which layer?

    1. ACutaneous layer
    2. BEpidermis
    3. CDermis
    4. DStratum basal
23. 232 stages of deep wound healing are the [blank_start]inflammatory[blank_end] phase and the [blank_start]repair[blank_end] phase.

    1. Ainflammatory
    2. Binflammation
    3. Cinflamed
    4. Dfixation
    5. Ehealing
    6. Fscar
    7. Grepair
24. 24During vasodilation, molecules signal the blood vessels to dilate.

    1. AVerdadero
    2. BFalso
25. 25When phagocytes squeeze out between blood vessel endothelial cells, it's called chemotaxis.

    1. AVerdadero
    2. BFalso
26. 26Phagocytes are attracted to an infected area by chemotaxis.

    1. AVerdadero
    2. BFalso
27. 27Phagocytes ingest bacteria.

    1. AVerdadero
    2. BFalso
28. 28What do platelets do?

    

    1. Aingest bacteria
    2. Bform clots
    3. Cprevent bacterial infection from spreading
    4. Ddilate blood vessels
29. 293 common skin cancers are a [blank_start]basal[blank_end] cell carcinoma, [blank_start]squamous[blank_end] cell carcinoma, and [blank_start]malignant[blank_end] melanomas.

    1. Abasal
    2. Bsquamous
    3. Cmalignant
30. 30[blank_start]Terminal[blank_end] hairs are found on eyebrows, eyelashes, axillary and pubic areas, while [blank_start]vellus[blank_end] hairs are short fine pale hairs that are barely visible.

    1. ATerminal
    2. BTerminus
    3. CVellus
    4. DVilli
    5. Eterminal
    6. Fvilli
    7. Gvellus
    8. Hterminus
31. 31The root of the hair if the portion that penetrated the deep dermis while the shaft is the superficial portion of the hair.

    1. AVerdadero
    2. BFalso
32. 32What are the 3 layers of the shaft and root of the hair?

    1. Afollicle
    2. Bcuticle
    3. Cmedulla
    4. Dcortex
33. 33Two types of macrophages that serve as antimicrobial protection for the skin are [blank_start]langerhans[blank_end] (intraepidermal) cells which are the alert immune system and [blank_start]dermal[blank_end] macrophages which engulf microbes that have invaded past the epidermis.

    1. Alangerhans
    2. Bdermal
34. 34[blank_start]Thin[blank_end] skin lacks a stratum [blank_start]lucidum[blank_end] , epidermal ridges and has fewer sweat glands and sensory receptors. Meanwhile, [blank_start]thick[blank_end] skin has a distinct stratum lucidum & thick stratum [blank_start]corneum[blank_end], also lacking hair foccicles and [blank_start]sebaceous[blank_end] glands.

    1. AThin
    2. BThick
    3. Cgranulosum
    4. Dbasale
    5. Elucidum
    6. Fthick
    7. Gthin
    8. Hcorneum
    9. Ilucidum
    10. Jsebaceous
    11. Ksudoriferous
    12. Lendocrine
    13. Mapocrine
35. 35The stratum lucidum layer is present only in thick skin.

    1. AVerdadero
    2. BFalso
36. 36This layer of skin is the most superficial layer of the epidermis containing 25 to 30 layers of tightly packed dead cells filled with keratin. It continuously sheds and serves as a protection barrier from the external environment such as heat, microbes, chemicals and water.

    1. Acorneum
    2. Blucidum
    3. Cbasale
    4. Dgranulosum
37. 37What is the CORRECT order of deep wound healing?

    1. ABlood vessels reform
       Fibriblasts synthesize scar tissue
       Basal cells divide and migrate under the scab
       Blood clot forms
       Epidermis regenerates
       Epidermis is pushed up
    2. BEpidermis regenerates
       Blood clot forms
       Epidermis is pushed up
       Fibriblasts synthesize scar tissue
       Basal cells divide and migrate under the scab
       Blood vessels reform
    3. CBlood clot forms
       Blood vessels reform
       Fibriblasts synthesize scar tissue
       Basal cells divide and migrate under the scab
       Epidermis regenerates
       Epidermis is pushed up
    4. DBlood clot forms
       Epidermis is pushed up
       Fibriblasts synthesize scar tissue
       Basal cells divide and migrate under the scab
       Blood vessels reform
       Epidermis regenerates
38. 38Hair follicles surround the root and consist of 2 layers of cells called the internal and external root [blank_start]sheaths[blank_end] and one layer of [blank_start]connective[blank_end] tissue called the [blank_start]dermal[blank_end] root sheath.

    1. Asheaths
    2. Bdermal
    3. Cconnective
39. 39Choose the correct sentence.

    1. AThe papillary region is the superficial portion of the dermis, while the reticular region is the deep portion.
    2. BThe papillary region is the deep portion of the dermis, while the reticular region is the superficial portion.
    3. CBoth the papillary region and reticular region are deep to the dermis.
40. 40The cuticle of the hair, the outermost layer, consists of a single layer of thin, flat cells that are the most heavily keratinized.

    1. AVerdadero
    2. BFalso
41. 41The 3 most outer layers of a hair consists of the

    1. Acuticle
    2. BDermal root sheath
    3. Ccortex
    4. Dexternal root sheath
    5. Einternal root sheath
    6. Fmedulla
42. 42Matrix cells in the growth stage of the hair growth cycle are _________ & ____________.

    1. Ainactive, falling out
    2. Bnourished, elongated
    3. Ckeratinized, differentiating
    4. Dwaterproofing, protecting
43. 43The hair follicle surrounds the [blank_start]root[blank_end]. When the hair falls out the follicle stays.

    1. Aroot
44. 44What is the role of the papilla of the hair?

    1. AContains areolar connective tissue to nourish the hair follicle .
    2. BIs the site of cell division
    3. CDissolves the protein of the hair follicle.
45. 45Which part of the hair is the germinal layer responsible for hair growth?

    1. Apapilla
    2. Bmatrix
    3. Chair root
    4. Dmedulla
46. 46The [blank_start]eponychium[blank_end] is the stratum [blank_start]corneum[blank_end] layer which is the cuticle of the epidermis

    

    1. Aeponychium
    2. Bhyponychium
    3. Clanula
    4. Dnail matrix
    5. Ebasal
    6. Fcorneum
    7. Glucidum
47. 47[blank_start]Sudoriferous[blank_end] glands secrete by exocytosis and are classified into 2 types: eccrine and apocrine.

    1. ASudoriferous
    2. BSebaceous
    3. CCeruminous
48. 48Which part of the hair is a nerve ending surrounding the hair bulb and detects hair movement?

    1. AArrector pilli muscle
    2. BSebaceous glands
    3. CBulb of the hair
    4. DHair root plexus
49. 49Label each layer correctly.

    

    1. AStratum corneum
    2. BStratum basale
    3. CStratum lucidum
    4. DStratum granulosum
    5. EStratum basale
    6. FStratum basale
    7. GStratum corneum
    8. HStratum granulosum
    9. IDermis
    10. JHypodermis
    11. KEpidermis
50. 50Differences in skin color among individuals are the result of

    1. AThe different levels of synthetic activity in the melanocytes
    2. BDifferences in the number of melanocytes
    3. CThe presence of carotene or melanin.
    4. DIncreased number of tactile epithelial cells
51. 51Special smooth muscles in the dermis that, when contracted, produce "goose bumps" are called

    1. Aarrector pilli muscles
    2. Bhair root plexus
    3. Chair follicles
    4. Dvellus hairs
52. 52Melanin serves as _____________ from UV radiation.

    1. Aa way to absorb vitamin D
    2. Ba hormone for converting nutrients for the body
    3. Ca discoloration from pigment
    4. Da protective mechanism of DNA
53. 53One function of sudoriferous glands are to release sweat, or [blank_start]perspiration[blank_end] into [blank_start]hair[blank_end] follicles or to skin surface through [blank_start]pores[blank_end]. In [blank_start]eccrine[blank_end] glands, this eliminates waste through the forehead, palms or soles of feet and [blank_start]apocrine[blank_end] glands excrete from the axilla, groin and [blank_start]areolae[blank_end] of breast.

    1. Aperspiration
    2. Bhair
    3. Cpores
    4. Deccrine
    5. Eapocrine
    6. Fareolae
54. 54What type of gland discharges products by exocytosis, such as a salivary gland or pancreatic gland?

    1. Aholocrine
    2. Bmerocrine
    3. Cexocrine
    4. Dapocrine
55. 55Which gland accumulates products at the apical surface, pinches off then repairs itself, such as a mammary gland?

    1. Aexocrine
    2. Bmerocrine
    3. Capocrine
    4. Dholocrine
56. 56This type of gland does not have ducts.

    1. Aexocrine
    2. Bholocrine
    3. Cmerocrine
    4. Dendocrine
57. 57Label the parts of the nail.

    

    1. Anail matrix
    2. Bhyponychium
    3. Ceponychium
    4. Dnail body
58. 58Which layer of the shaft and root consists of 2-3 rows of irregular cells?

    1. Ashaft
    2. Bcortex
    3. Cmedulla
    4. Dcuticle

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langara Test sobre Chapter 5 - integumentary system practice quiz, creado por Catherine Oh el 17/06/2018.

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