Deck 6: The Integumentary System

Question 1

Pattern baldness is relatively rare in women because women have lower testosterone levels than
men.

Answer 1

True

Question 2

The three forms of skin cancer are defined by the types of cells from which they originate.

Answer 2

True

Question 3

The skin carries out the first step in the synthesis of vitamin

Answer 3

True

Question 4

The acidity of sweat contributes to the acid mantle that inhibits bacterial growth in the skin.

Question 5

Most of the skin is mm thick.

A)0.01 to 0.02
B)0.1 to 0.2
C)1 to 2
D)10 to 20
E)100 to 200

Question 6

Hair and nails are composed of collagen.

Question 7

The youngest keratinocytes are found in the stratum basale.

Question 8

These are all types of cells found in the epidermis except

A)melanocytes.
B)fibroblasts.
C)stem cells.
D)keratinocytes.
E)tactile (Merkel) cells.

Question 9

Melanin, hemoglobin, and carotene give color to the skin.

Question 10

Albinism is the genetic lack of melanin that results in a milky white coloration of the skin.

Question 11

Skin covering the has sweat glands but no hair follicles or sebaceous (oil) glands.

A)forearm
B)buttocks
C)abdomen
D)fingertips
E)back

Question 12

Freckles are elevated patches with an abnormal coloration of the skin.

Question 13

Living keratinocytes exfoliate from the epidermis as tiny specks called dander.

Question 14

Straight hair is round, wavy hair is oval, and curly hair is relatively flat.

Question 15

This image shows structures of the skin and subcutaneous tissue.What does "3" represent?

A)stratum basale
B)stratum spinosum
C)stratum corneum
D)dermis
E)hypodermis

Question 16

Merocrine sweat glands are associated with hair follicles in the pubic and anal regions, axilla, areola,
and beard.

Question 17

Debridement is not necessary to infection control.

Question 18

The deeper of the two layers of the skin is the hypodermis.

Question 19

Embarrassment can be perceived by an abnormal coloration of the skin called cyanosis.

Question 20

The skin does not include

A)the epidermis.
B)the papillary layer.
C)the hypodermis.
D)the stratum basale.
E)the dermis.

Question 21

Calluses or corns are the result of accelerated multiplication of

A)melanocytes.
B)keratinocytes.
C)fibroblasts.
D)tactile cells.
E)red blood cells.

Question 22

This image shows strata and cell types of the epidermis.represents a living keratinocyte belonging to the stratum basale.

A)"1"
B)"2"
C)"3"
D)"4"
E)"5"

Question 23

Leather is mostly made of the layer of the dermis, which is very tough due to the high concentration of fibers.

A)areolar; collagen
B)areolar; keratin
C)reticular; collagen
D)reticular; keratin
E)papillary; keratin

Question 24

Bilirubin causes a skin discoloration called

A)erythema.
B)jaundice.
C)pallor.
D)bronzing.
E)cyanosis.

Question 25

This image shows structures of the skin and subcutaneous tissue.are found in the layer of the skin represented as "2".

A)Collagen and living keratinocytes
B)Collagen and dead keratinocytes
C)Collagen and fibroblasts
D)Elastic fibers and melanocytes
E)Elastic fibers and dendritic cells

Question 26

The hypodermis usually has an abundance of this tissue.

A)epithelial tissue
B)muscular tissue
C)nervous tissue
D)adipose tissue
E)keratinized tissue

Question 27

Ethnic differences in skin color are primarily caused by differences in

A)UV radiation exposure.
B)quantity of hemoglobin carried in the blood.
C)quantity of melanin produced.
D)number of melanocytes.
E)number of keratinocytes.

Question 28

Which of the following are associated with the sense of touch?

A)fibroblasts
B)melanocytes
C)keratinocytes
D)dendritic (Langerhans) cells
E)tactile (Merkel) cells

Question 29

This image shows structures of the skin and subcutaneous tissue.What does "1" represent?

A)stratum corneum
B)epidermis
C)papillary layer
D)reticular layer
E)hypodermis

Question 30

This skin color is most likely to result from anemia.

A)pallor
B)erythema
C)hematoma
D)albinism
E)jaundice

Question 31

This image shows strata and cell types of the epidermis."2" represents a , whereas "4" represents a .

A)dead keratinocyte; dendritic cell
B)living keratinocyte; dead keratinocyte
C)melanocyte; dendritic cell
D)living keratinocyte; melanocyte
E)melanocyte; living keratinocyte

Question 32

The fastest rate of mitosis happens in the

A)stratum basale.
B)stratum spinosum.
C)stratum granulosum.
D)stratum lucidum.
E)stratum corneum.

Question 33

A is an elevated patch of melanized skin.

A)hemangioma
B)mole
C)freckle
D)flexion line
E)friction ridge

Question 34

This layer of the epidermis consists of up to 30 layers of dead cells.

A)stratum basale
B)stratum spinosum
C)stratum granulosum
D)stratum lucidum
E)stratum corneum

Question 35

This image shows structures of the skin and subcutaneous tissue.Layer "1" represents , whereas layer "2" represents .

A)simple squamous epithelium; areolar tissue
B)stratified squamous epithelium; dense irregular connective tissue
C)dense irregular connective tissue; stratified squamous epithelium
D)simple squamous epithelium; stratified squamous epithelium
E)dense regular connective tissue; stratified squamous epithelium

Question 36

The is absent from most epidermis.

A)stratum basale
B)stratum spinosum
C)stratum granulosum
D)stratum lucidum
E)stratum corneum

Question 37

Fingerprints left on things we touch are associated with

A)dermal papillae.
B)epidermal ridges.
C)stratum basale.
D)subcutaneous tissue.
E)subcutaneous fat.

Question 38

These cells stand guard against toxins, microbes and other pathogens.

A)keratinocytes
B)melanocytes
C)adipocytes
D)dendritic (Langerhans) cells
E)tactile (Merkel) cells

Question 39

The skin discoloration most likely to suggest physical abuse is

A)pallor.
B)albinism.
C)erythema.
D)hematoma.
E)jaundice.

Question 40

The reddish color of the skin of the lips is primarily due to this pigment.

A)hemoglobin
B)myoglobin
C)melanin
D)carotene
E)keratin

Question 41

The hair present only prenatally is called , most of which is replaced by by the time of birth.

A)pilus; terminal hair
B)lanugo; terminal hair
C)vellus; terminal hair
D)vellus; lanugo
E)lanugo; vellus

Question 42

Which two strata of the epidermis are most susceptible to cancer?

A)corneum and lucidum
B)basale and corneum
C)spinosum and basale
D)granulosum and spinosum
E)lucidum and granulosum

Question 43

The contraction of the piloerector muscles (pilomotor muscle or arrector pili) in humans causes

A)hairs to stand on end trapping an insulating layer of warm air next to the skin.
B)generation of heat to raise the body temperature.
C)hairs to stand on end to make the individual appear bigger.
D)hairs to stand on end with no apparent function.
E)increased ability to feel pain.

Question 44

Mammary glands are modified glands that develop within the female breast, whereas are present in both sexes.

A)merocrine; scent glands
B)apocrine; breasts
C)apocrine; scent glands
D)sebaceous; sudoriferous glands
E)sudoriferous; sebaceous glands

Question 45

The cutaneous glands concerned with cooling the body are

A)ceruminous glands.
B)sebaceous glands.
C)merocrine glands.
D)apocrine glands.
E)exothermic glands.

Question 46

is/are formed partly from the secretions of glands in the external ear canal.

A)Sebum
B)Cerumen
C)Sweat
D)Scents
E)Mucus

Question 47

Variations in hair color arise from the relative amounts of

A)collagen and elastic filaments.
B)keratin and melanin.
C)carotene and hemoglobin.
D)carotene and collagen.
E)eumelanin and pheomelanin.

Question 48

This image shows the structure of a hair and its follicle.What does "1" represent?

A)bulb
B)root
C)shaft
D)medulla
E)cuticle

Question 49

Blood vessels in the provide a hair with its sole source of nutrition.

A)bulb
B)root
C)shaft
D)dermal papilla
E)medulla

Question 50

A pilus is

A)a hair.
B)a hair follicle.
C)a tiny muscle that moves a hair.
D)a sensory nerve fiber around the base of a hair.
E)a gland associated with a hair follicle.

Question 51

A hair cycle consists of three developmental stages in the following order:

A)anagen, telogen, and catagen.
B)anagen, catagen, and telogen.
C)catagen, anagen, and telogen.
D)catagen, telogen, and anagen.
E)telogen, anagen, and catagen.

Question 52

The oil of your scalp is secreted by glands associated with the hair follicles.

A)merocrine sweat
B)apocrine sweat
C)sebaceous
D)ceruminous
E)mammary

Question 53

This image shows cutaneous glands.The name of structure "1" is

A)merocrine gland
B)apocrine gland
C)sebaceous gland
D)ceruminous gland
E)perspiration gland

Question 54

Secretions from glands contribute to the acid mantle that inhibits bacterial growth on the skin.

A)mammary
B)ceruminous
C)sebaceous
D)apocrine sweat
E)merocrine sweat

Question 55

The are a source of sex pheromones.

A)ceruminous glands
B)merocrine glands
C)mammary glands
D)sebaceous glands
E)apocrine glands

Question 56

This image shows the anatomy of a fingernail.What does "2" represent?

A)free edge
B)nail body
C)eponychium (cuticle)
D)lunule
E)nail root

Question 57

Each hair grows in an oblique epithelial tube called a(an)

A)hair follicle.
B)vellus.
C)pilus.
D)bulb.
E)dermal papilla.

Question 58

The narrow zone of dead skin overhanging the proximal end of a nail is called

A)eponychium (cuticle).
B)lunule.
C)nail plate.
D)nail body.
E)nail root.

Question 59

Mitosis in the accounts for growth of the nail.

A)nail plate
B)nail fold
C)eponychium
D)hyponychium
E)nail matrix

Question 60

Excessive hairiness is called

A)telogenism.
B)anagenism.
C)catagenism.
D)alopecia.
E)hirsutism.

Question 61

burns involve the epidermis, all of the dermis, and often some deeper tissue.

A)First-degree
B)Second-degree
C)Third-degree
D)Partial-thickness
E)Malignant

Question 62

The "ABCD rule" for recognizing early signs of malignant melanoma refers to the following characteristics of the lesion:

A)asymmetry, border irregularity, color, and diameter
B)asymmetry, brightness, color, and diameter
C)aspect, brightness, color, and distance
D)aspect, border irregularity, color, and distance
E)area, border irregularity, color, and density

Question 63

The least common but most deadly type of skin cancer is

A)basal cell carcinoma.
B)squamous cell carcinoma.
C)melanoma.
D)skin lymphoma.
E)skin sarcoma.

Question 64

The most immediate threat to the life of a patient with severe burns is

A)fluid loss.
B)eschar.
C)heat loss.
D)pain.
E)infection.

Question 65

Basal cell carcinoma initially affects cells of the stratum , whereas melanoma arises from .

A)spinosum; keratinocytes
B)spinosum; melanocytes
C)basale; fibroblasts
D)basale; melanocytes
E)basale; keratinocytes