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Chapter 5 Integumentary System

Total questions: 81

Worksheet time: 1hrs 7mins

Name
Class
Date
1.

The skin consists of what two major regions?

a)

Hypodermis & Dermis

b)

Epidermis & Dermis

c)

Mesoderm & Endoderm

d)

Hypodermis & Epidermis

2.

The Epidermis is the outermost superficial region

a)

True

b)

False

3.

The Dermis layer is in between the Epidermis and Hypodermis.

a)

True

b)

False

4.

Which of the following is true about the Hypodermis?

a)

It is also known as the Superficial Fascia

b)

It is connective tissue deep to the skin

c)

Composed largely of adipose tissue

d)

Loosely anchors skin to underlying structures

e)

It is the deeper, thicker region

5.

The Epidermis is composed of what type of Epithelium?

a)

Keratinized pseudostratified columnar epithelium

b)

Keratinized simple cuboidal epithelium

c)

Keratinized stratified squamous epithelium

d)

Keratinized simple columnar epithelium

6.

The Epidermis is NOT exposed to the external environment and does NOT function in protection

a)

True

b)

False

7.

What are the 4 cells of the Epidermis?

a)

Keratinocytes

b)

Melanocytes

c)

Langerhans Cells

d)

Merkel Cells

e)

Osteocytes

8.

Keratinocytes...?

a)

Most abundant cells, produce the fibrous protein KERATIN

b)

Produce the brown pigment MELANIN as melanin granules

c)

Epidermal macrophages that help activate the immune system

d)

Function as touch receptors in association with sensory nerve endings

9.

Melanocytes...?

a)

Most abundant cells, produce the fibrous protein KERATIN

b)

Produce the brown pigment MELANIN as melanin granules

c)

Epidermal macrophages that help activate the immune system

d)

Function ad touch receptors in association with sensory nerve endings

10.

Langerhans Cells (Dendrite Cells)...?

a)

Most abundant cells. produce the fibrous protein KERATIN

b)

Produce the brown pigment MELANIN as melanin granules

c)

Epidermal macrophages that help activate the immune system

d)

Function as touch receptors in association with sensory nerve endings

11.

Merkel Cells...?

a)

Most abundant cells, produce the fibrous protein KERATIN

b)

Produce the brown pigment MELANIN as melanin granules

c)

Epidermal macrophages that help activate the immune system

d)

Function as touch receptors in association with sensory nerve endings

12.

Name the layers of the Epidermis from deepest to most superficial.

a)

Stratum Basale, Stratum Spinosum, Stratum Granulosum, Stratum Lucidum, Stratum Corneum

b)

Stratum Basale, Stratum Granulosum, Stratum Spinosum, Stratum Lucidum, Stratum Corneum

c)

Stratum Spinosum, Stratum Granulosum, Stratum Corneum, Stratum Basale, Stratum Lucidum

13.

Which of the following is true about the Stratum Basale layer?

a)

Deepest epidermal layer firmly attached to the Dermis

b)

Consists primarily of a single row of the youngest KERATINOCYTES

c)

Cells undergo rapid division, which gives its alternate name; STRATUM GERMINATIVUM

d)

Cells contain a web-like system of intermediate filaments of pre-keratin attached to demosomes

14.

Which of the following is true about the Stratum Spinosum (Prickly) Layer?

a)

Cells contain a web-like system of intermediate filaments of pre-keratin attached to desmosomes

b)

Melanin granules and LANGERHANS CELLS are also abundant in this layer

c)

Three to five cell layers in which drastic changes in keratinocytes occur

d)

Cells undergo rapid division

15.

Which of the following is true about the Stratum Granulosum (Granular) Layer?

a)

Three to five cell layers in which drastic changes in keratinocytes occur

b)

Cells flatten and organelles deteriorate

c)

KERATOHYALINE (helps form keratin) and LAMELLAR (release glycolipids) GRANULES accumulate

d)

Plasma membranes thicken and lipids coat external surface (WATERPROOF)

e)

PRESENT ONLY IN THICK SKIN

16.

Which of the following is true about the Stratum Lucidum (clear) Layer?

a)

Thin, transparent band superficial to the stratum granulosum

b)

Consists of a few rows of flat, dead, keratinocytes

c)

PRESENT ONLY IN THICK SKIN

d)

Cells flatten and organelles deteriorate

17.

Thick skin are found on _________ and contain _____ layers

a)

Palms of hands and soles of feet; 5

b)

All over the body; 4

c)

Bad b*tches; 0

d)

Palms of hands and soles of feet; 4

18.

Which of the following is true about the Stratum Corneum (horny) Layer?

a)

Outermost layer of dead keratinized cells

b)

Accounts for up to three quarters of the epidermal thickness

c)

Protect from abrasions and penetration

d)

Forms a biological, chemical, and physical barrier

e)

Consists of a few rows of flat, dead keratinocytes

19.

The Dermis is the deeper skin region composed of what two layers

a)

Papillary layer- outer layer

b)

Reticular layer- inner thicker layer

c)

Capillary layer- contains capillaries for redness

20.

The Papillary Layer...

a)

Is composed of AREOLAR CONNECTIVE TISSUE

b)

The superior surface contains projections called DERMAL PAPILLAE

c)

Is composed of DENSE IRREGULAR CONNECTIVE TISSUE

21.

Dermal Papillae contain:

a)

Capillary loops

b)

Meissner's corpuscles (touch receptors)

c)

Free nerve endings (pain recptors)

d)

Accounts for approximately 80% of the thickness of the dermis

22.

The Reticular Layer:

a)

Composed of DENSE IRREGULAR CONNECTIVE TISSUE

b)

Accounts for approximately 80% of the thickness of the dermis

c)

COLLAGEN and ELASTIN fibers in this layer add strength, resiliency and elasticity to the skin

d)

Free nerve endings (pain receptors)

23.

What three pigments contribute to skin color?

a)

Melanin

b)

Carotene

c)

Hemoglobin

d)

Myoglobin

24.

What is Melanin?

a)

Yellow to reddish-brown to black pigment, responsible for primary skin colors

b)

Freckles and pigmented moles-- result from local accumulations of melanin

c)

Yellow to orange pigment, most obvious in the palms and soles of the feet

d)

Reddish pigment responsible for the pinkish hue of the skin

25.

What is Carotene?

a)

Yellow to reddish-brown to black pigment, responsible for primary skin colors

b)

Yellow to orange pigment, most obvious in the palms and soles of the feet

c)

Reddish pigment responsible for the pinkish hue to the skin

26.

What is Hemoglobin?

a)

Yellow to reddish-brown to black pigment, responsible for primary skin colors

b)

Yellow to orange pigment, most obvious in the palms and soles of the feet

c)

Reddish pigment responsible for the pinkish hue of the skin

27.

What are the Glands of the skin?

a)

Sweat Glands

b)

Sebaceous Glands

c)

Pineal Gland

d)

Parathyroid Gland

28.

Which of the following are types of Sweat Glands?

a)

Eccrine (Merocrine) Sweat Glands

b)

Apocrine Sweat Glands

c)

Ceruminous Glands

d)

Mammary Glands

e)

Pineal Sweat Glands

29.

The purpose of sweat glands are to prevent overheating of the body; they also secrete cerumen and milk

a)

True

b)

False

30.

Which of the following is true about Eccrine Sweat Glands (Merocrine Sweat Glands)?

a)

They are found all over the body but are particularly numerous in palms, soles of the feet, and forehead

b)

They secrete a watery sweat to cool the body

c)

Are activated by hormones, particularly androgens, beginning at puberty

31.

Which of the following is true about Apocrine Sweat Glands?

a)

They empty into hair follicles in the axillary and anogenital areas

b)

Secretions contain fats and proteins that produce odor when broken down by bacteria

c)

Are activated by hormones, particularly androgens, beginning at puberty

d)

Secrete a watery sweat to cool the body

32.

Which of the following is true about Ceruminous Glands?

a)

Modified apocrine glands in external ear canal that secrete cerumen (ear wax)

b)

Are activated by hormones, particularly androgens, beginning at puberty

c)

Specialized sweat glands that secrete milk

d)

Found all over the body but are particularly numerous in palms, soles of the feet, and forehead

33.

Which of the following is true about Mammary Glands?

a)

Specialized sweat glands that secrete milk

b)

Secrete a watery sweat to cool the body

c)

Empty into hair follicles in the axillary and anogenital areas

d)

Modified apocrine glands in external ear canal that secrete cerumen (ear wax)

34.

Which of the following is true about Sebaceous Glands?

a)

Simple alveolar glands found all over the body, usually associated with hair follicles

b)

Secrete an oily secretion called SEBUM that lubricates, softens and reduces water loss from skin and hair

c)

Empty into hair follicles in the axillary and anogenital areas

35.

Which of the following is hair (on the skin) not found on?

a)

Palms of hands

b)

Soles of the feet

c)

Lips

d)

Nipples

e)

Portions of the external genitalia

36.

What are the functions of hair?

a)

Alerting the body to presence of insects etc. on the skin

b)

Guarding against physical trauma, heat loss, and sunlight

c)

Protect the body from external temperatures

d)

To produce cutis anserine also known as "goosebumps"

37.

Which of the following is true about the structure of a Hair?

a)

Hairs are filamentous strands of dead keratinized cells produced by hair follicles

b)

Contains hard keratin much tougher and more durable than soft keratin of the skin

c)

Made up of the SHAFT projecting from the skin, and the ROOT embedded in the skin

d)

Alters the body's presence of insects etc. on the skin

38.

Which of the THREE does Hair consist of?

a)

Medulla

b)

Cortex

c)

Cuticle

d)

Shaft

39.

Hairs are pigmented by ________ at the base of the hair

a)

Hair dye

b)

Keratinocytes

c)

Melanocytes

d)

Carotene

40.

A _____ ______ extends from the epidermal surface into the dermis

a)

Root Sheath

b)

Hair Bulb

c)

Arrector Pili Muscle

d)

Root Hair Plexus

41.

The Hair Bulb is...?

a)

The deep end

b)

Extends from the epidermal surface into the dermis

c)

Associated with each follicle

d)

A knot of sensory nerve endings wrapped around each hair bulb

42.

What is an Arrector Pili Muscle?

a)

Associated with each follicle; GOOSEBUMPS

b)

A knot of sensory nerve endings wrapped around each hair bulb

c)

The deep end of a hair follicle

d)

Extends from the epidermal surface into the dermis

43.

What is a Root Hair Plexus?

a)

A knot of sensory nerve endings wrapped around each hair bulb

b)

The deep end of a hair follicle

c)

Associated with each follicle; GOOSEBUMPS

d)

Extends from the epidermal surface into the dermis

44.

Bending hair stimulates these endings, hence hairs act as sensitive touch receptors

a)

True

b)

False

45.

Which of the following is true about Vellus Hair?

a)

Pale, fine body hair found in children and adult females

b)

Coarse, long hair of eyebrows, scalp, axillary, and pubic regions of both sexes

c)

Hair of the face, chest and usually arms and legs of males

d)

Hair follicles have a growth phase (weeks to years) followed by regressive stage and resting phase (1-3 months)

46.

Which of the following is true about Terminal Hair?

a)

Coarse, long hair of eyebrows, scalp, axillary, and pubic regions of both sexes

b)

Hair of the face, chest and usually arms and legs of males

c)

Pale, fine body hair found in children and adult females

d)

Hair follicles have growth phase (weeks to years) followed by regressive stage and resting phase (1-3 months)

47.

Which of the following is true about Hair Growth?

a)

Hair follicles have a growth (weeks to years) followed by regressive stage and resting phase (1-3 months)

b)

The next growth phase phase will replace a hair that has fallen out or will push an existing hair out the follicle

c)

The growth phase varies (6-10 years in the scalp, 3-4 months in the eyebrows)(ONLY ACTIVE FOR A FEW MONTHS)

d)

Pale, fine body hair found in children and adult females

48.

What is Alopecia?

(a)  

49.

Which of the following is true about True or Frank baldness?

a)

Genetically determined and sex-influenced condition

b)

Male pattern baldness--caused by follicular response to DHT (dihydrotestosterone)

c)

Its baldness thats on True and Frank

50.

A ____ is a scale like modification of the epidermis on the distal, dorsal surface of fingers and toes

a)

Dragon scale

b)

Nail

c)

Fish

d)

Dry Skin

51.

The ____ ___ is the deeper layers of epidermis beneath the nail

a)

Nail Bed

b)

Nail Matrix

c)

Nail Dermis

d)

Nail tech

52.

The ____ ______ is the thickened, proximal end of the nail bed responsible for the nail growth (seen as the LUNULE of LUNULA of the nail)

a)

Nail Bed

b)

Nail Matrix

c)

Nail Tech

d)

Nail

53.

Which of the following is a function of the Integumentary System?

a)

Protection

b)

Body Temperature Regulation

c)

Cutaneous Sensation

d)

Metabolic Functions

e)

Blood Reservoir & Execretion

54.

Which of the following is a function of Protection of the skin?

a)

Chemical Barriers:

* SKIN SECRETIONS inhibit the growth of bacteria

*MELANIN shields cells from UV damage

b)

Physical Barrier:

*Toughness or keratinized cells and the waterproofing action of the GLYCOLIPIDS form a physical barrier

c)

Biological Barriers:

*LANGERHANS' CELLS and other macrophages fight bacteria and viruses

*DNA absorbs UV radiation and converts to heat

55.

Which of the following is true about Body Temperature Regulation?

a)

Dilation of dermal blood vessels radiates heat

b)

Constriction of dermal blood vessels conserves heat

c)

Increasing sweat gland secretions cools the body

d)

DNA absorbs UV radiation and converts to heat

56.

Which of the following is true about Cutaneous Sensation?

a)

EXTERORECPTORS sense, touch, pressure, temperature and pain

b)

increasing sweat gland secretions cools the body

c)

Constriction of dermal blood vessels conserves body heat

d)

Dilation of dermal blood vessels radiates heat

57.

Metabolic Functions include(s):

a)

Skin is involved in the synthesis of vitamin D

b)

Enzymes in KERATINOCYTES are involved in the conversion or activation of certain molecules

c)

Increasing sweat glands secretions cools the body

d)

DNA absorbs UV radiation and converts to heat

58.

Body reservoir is...?

a)

Skin blood vessels store up to 5% of the body's blood volume

b)

Small amounts of nitrogenous wastes are eliminated from the body in sweat

c)

Enzymes in KERATINOCYTES are involved in the conversion or activation of certain molecules

d)

DNA absorbs UV radiation and converts to heat

59.

Excretion...:

a)

Small amounts of nitrogenous wastes are eliminated from the body in sweat

b)

Skin blood vessels store up to 5% of the body's blood volume

c)

DNA absorbs UV radiation and converts to heat

d)

Skin is involved in the synthesis of vitamin D

60.

Most tumors are ______, however, some are MALIGNANT and ________ (spread to other tissue).

a)

Benign; Metastasize

b)

Metastasize; Benign

c)

Melanoma; Metastasize

d)

Benign; Melanoma

61.

What are the three major types of metastatic skin cancers?

a)

Basal Cell Carcinoma

b)

Squamous Cell Carcinoma

c)

Melanoma

d)

Stratum Basale

62.

Which of the following is true about Basal Cell Carcinoma skin cancer?

a)

STRATUM BASALE cells proliferate and invade the dermis and hypodermis

b)

Least malignant and most common skin cancer

c)

Slow growing and does not often metastasize

d)

Arises from KERATINOCYTES of the STRATUM SPINOSUM

63.

Which of the following is true about Squamous Cell Carcinoma skin cancer?

a)

Arises from KERATINOCYTES of the STRATUM SPINOSUM

b)

Grows rapidly and metastasizes if not removed

c)

Arise most often on scalp, ears, and lower lip and hand

d)

Slow growing and does not metastasize

64.

Which of the following is true about Melanoma skin cancer?

a)

Is the most dangerous type of skin cancer

b)

Highly metastatic

c)

Resistant to chemotherapy

d)

Least malignant and most common skin cancer

65.

What is Melanoma skin cancer?

a)

Cancer involving MELANOCYTES

b)

Cancer involving KERATINOCYTES

c)

Cancer involving CAROTENE

66.

Melanomas have which of the following characteristics?

a)

Asymmetry: the two sides of the pigmented area do not match

b)

Border: is irregular and exhibits indentions

c)

Color: the pigmented area is black, brown, tan and sometimes red and blue

d)

Diameter: is larger than 6mm (size of a pencil eraser)

67.

Burns...?

a)

Result from cell damage and death due to heat, electricity, radiation of chemicals

b)

Destroy, damage, or injure by heat of fire

c)

Result from skin damage and death due to extreme coolness and frostbite

68.

What is the immediate threat from EXTENSIVE, SEVERE BURNS?

a)

Fluid Loss

b)

Dehydration

c)

Electrolyte Imbalance

d)

Third-Degree Burn

69.

Following the threat of EXTENSIVE, SEVERE BURNS, what can the symptoms result to?

a)

Kidney Failure

b)

Circulatory Shock

c)

Death

d)

Skin Grafts

70.

Only the epidermis is damaged; symptoms include redness, swelling, and pain

a)

First Degree

b)

Second Degree

c)

Third Degree

d)

Fourth Degree

71.

Epidermis and upper regions of dermis are damaged; symptoms are the same as for the first degree burns, but blisters appear

a)

First Degree

b)

Second Degree

c)

Third Degree

d)

Fourth Degree

72.

Entire thickness of the skin is damaged (epidermis and dermis); burned area appears gray-white, cherry red, or black

a)

First Degree

b)

Second Degree

c)

Third Degree

d)

Fourth Degree

73.

True or False: There is no initial pain on third degree burns since nerve endings are destroyed

a)

True

b)

False

74.

What is the Burns: Rules of Nine?

a)

Estimates the severity of burns

b)

Estimates what degree a burn is

c)

Estimates the layers of skin the burn has reached

75.

Burns are considered critical if:

a)

Over 25% of the body has second degree burns

b)

Over 10% of the body has third degree burn

c)

There are third degree burns on face, hands, or feet

d)

Over 45% of the body has first degree burns

76.

The epidermis develops from _____?

a)

Ectoderm

b)

Mesoderm

c)

Endoderm

77.

Dermis and Hypodermis develop from ______?

a)

Ectoderm

b)

Mesoderm

c)

Endoderm

78.

Lanugo is....?

a)

Downy coat of delicate hairs covering the fetus

b)

Produced by sebaceous glands to protect the skin of the fetus during development

79.

Vernix Caseosa is...?

a)

Downy coat of delicate hairs covering the fetus

b)

Produced by sebaceous glands to protect the skin of the fetus during development

80.

Which of the following are some developmental aspects of adolescents to adult of the SKIN?

a)

Skin and hair become oilier and acne appear

b)

Skin shows the effects of cumulative environmental damage around 30

c)

Scaling and dermatitis become more common

d)

Puberty

81.

Which of the following are some developmental aspects of old age on the SKIN?

a)

Replacement cells become slow and skin thins

b)

Skin becomes dry and itchy

c)

Subcutaneous fat layer diminishes, leading to intolerance of cold

d)

Decreased elasticity and loss of subcutaneous tissue leads to wrinkles

e)

Decreased numbers of MELANOCYTES and LANGERHAN'S CELLS increase the risk of skin cancer

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