Deck 5: The Integumentary System Unit Ii: Principles of Support and Movement

Question 1

Which layer of the epidermis contains layers of flattened keratinocytes that are going through apoptosis?

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

Answer 1

C

Question 2

Constant exposure of skin to friction stimulates the formation of a callus,which is the thickening of the _____ of the epidermis.

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

Answer 2

E

Question 3

Albinism is the inherited inability to produce

A)melanin.
B)carotene.
C)both melanin and carotene.
D)keratin.
E)creatinine.

Answer 3

A

Question 4

Another name for the subcutaneous layer is

A)Dermis
B)Epidermis
C)Stratum corneum
D)Stratum basale
E)Hypodermis

Question 5

Which layer of the epidermis is composed of a single row of cuboidal or columnar keratinocytes?

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

Question 6

This type of exocrine gland is a simple,branched acinar gland connected to a hair follicle.

A)Sebaceous gland
B)Sudoriferous gland
C)Both sebaceous gland and sudoriferous gland
D)None of these answers are correct

Question 7

This is fine non-pigmented hair that covers the body of the fetus.

A)Alopecia
B)Vellus
C)Lanugo
D)Papilla
E)Lunula

Question 8

Describe how fingerprints are formed and what they are used for.

Question 9

Which pigment secreted by specialized cells in the skin is capable of absorbing ultraviolet light?

A)Keratin
B)Melanin
C)Melatonin
D)Carotene
E)Collagen

Question 10

Which of the following structures found in the skin help prevent water loss and inhibit bacterial growth on the surface of the skin?

A)Arrector pili
B)Lunula
C)Sweat glands
D)Hair follicles
E)Oil glands

Question 11

Keratin

A)is a protein.
B)is secreted by plasma cells to help protect the body from viruses.
C)is made by melanocytes only.
D)is both a protein and made by melanocytes only.
E)All of these choices are correct.

Question 12

Which of the following structures found in the skin plays an important role in thermoregulation?

A)Tactile epithelial cells (Merkel cells)
B)Sebaceous glands
C)Sweat glands
D)Nails
E)Fingerprints

Question 13

Describe the structure and function of arrector pili.

Question 14

Characteristics of thick skin include:

A)Found in the palms,soles of the feet and fingertips.
B)Does not contain hair follicles.
C)Contains more sweat glands than thin skin.
D)Contain epidermal ridges.
E)All of these choices are correct

Question 15

Which of the following is a mixture of triglycerides,cholesterol,proteins and inorganic salts?

A)Sweat
B)Lanugo
C)Vellus
D)Sebum
E)Mucus

Question 16

Which layer of the skin is composed mainly of dense irregular connective tissue containing collagen and elastic fibers?

A)Hypodermis
B)Basement membrane
C)Epidermis
D)Dermis
E)Subcutaneous (subQ)layer

Question 17

Which layer of the skin is composed of a keratinized stratified squamous epithelium?

A)Epidermis
B)Dermis
C)Hypodermis
D)Subcutaneous layer
E)Corpuscle

Question 18

Which epidermal cell has a role in immunity and disease resistance?

A)Intraepidermal macrophages (Langerhans cells)
B)Keratinocytes
C)Melanocytes
D)Tactile epithelial cells (Merkel cells)
E)Podocytes

Question 19

The stratum lucidum

A)contains lamellar granules.
B)lies just above the stratum basale.
C)is the layer used in a skin graft.
D)is present only in thick skin.
E)can consist of up to 25-30 layers of dead keratinocytes.

Question 20

The process of keratinization involves

A)synthesizing new pigment in the skin.
B)cells accumulating a tough fibrous protein that helps protect the skin.
C)changes occurring in thin skin only.
D)both synthesizing new pigment in the skin and cells accumulating a tough fibrous protein that helps protect the skin.
E)none of these answer choices are correct.

Question 21

In the diagram of skin shown below,where is the apocrine sweat gland?

A)C
B)D
C)E
D)F
E)H

Question 22

In the figure of a sagittal section of a fingernail shown below,where is the nail root?

A)A
B)C
C)E
D)F
E)G

Question 23

Briefly describe the steps in deep wound healing.

Question 24

In the photomicrograph of a portion of thick skin shown below,which layer is the stratum basale?

A)A
B)B
C)D
D)E
E)F

Question 25

In the diagram of skin shown below,where is the reticular region of the dermis?

A)E
B)F
C)G
D)H
E)A

Question 26

In the photomicrograph of a portion of thick skin shown below,which layer is the stratum spinosum?

A)A
B)B
C)C
D)D
E)E

Question 27

Which type of exocrine gland is a simple,coiled tubular gland that is found throughout almost the entirety of the skin?

A)Sebaceous gland
B)Eccrine sweat gland
C)Apocrine sweat gland
D)Ceruminous gland
E)None of these answer choices are correct.

Question 28

In the diagram of a hair root shown,where is the cuticle of the hair?

A)A
B)B
C)C
D)D
E)E

Question 29

List and briefly describe the major functions of the skin.

Question 30

In the figure of a sagittal section of a fingernail shown,where is the hyponychium (nail bed)?

A)B
B)C
C)E
D)F
E)G

Question 31

In the photomicrograph of a portion of thick skin shown below,which layer is only seen in thick skin?

A)A
B)B
C)C
D)D
E)E

Question 32

In which type of scar does the scar tissue extend beyond the boundary of the injury into normal tissue?

A)Hypertrophic scar
B)Keloid scar
C)Proliferative scar
D)Inhibitory scar
E)Granuloma

Question 33

In the diagram of skin shown below,which labeled structure generates fingerprints?

A)A
B)B
C)G
D)H
E)None of these answer choices are correct.

Question 34

In the figure of a sagittal section of a fingernail shown below,where is the nail matrix?

A)A
B)C
C)E
D)F
E)G

Question 35

In the diagram of skin shown below,where is the arrector pili muscle?

A)C
B)D
C)E
D)F
E)G

Question 36

In the diagram of skin shown below,where is the sebaceous gland?

A)C
B)D
C)E
D)F
E)H

Question 37

Briefly describe the steps in epidermal wound healing.

Question 38

In the figure of a sagittal section of a fingernail shown,where is the eponychium (cuticle)?

A)A
B)B
C)E
D)F
E)G

Question 39

In the diagram of a hair root shown,where is the dermal root sheath?

A)C
B)D
C)E
D)F
E)G

Question 40

In the diagram of a hair root shown,where is the cortex?

A)B
B)C
C)D
D)E
E)F

Question 41

Describe the structural characteristics of the epidermis that contribute to its ability to protect the surface of an animal.

Question 42

Describe the major differences between thin skin and thick skin.

Question 43

In the diagram,which layer is the stratum granulosum?

A)E
B)F
C)G
D)H
E)I

Question 44

In the diagram,which is a melanocyte?

A)A
B)B
C)E
D)F
E)G

Question 45

John has just been brought into the emergency room following a fiery explosion at a chemical plant.He is diagnosed with third degree burns over the anterior surfaces of his arms and trunk.What specific structural damage has occurred to his skin? What risks to John's life have resulted from this damage?

Question 46

Which structure in the figure detects touch sensations?

A)A
B)B
C)C
D)D
E)G

Question 47

Which structure in the figure produces a pigment that contributes to skin color and absorbs UV radiation?

A)A
B)B
C)C
D)D
E)G

Question 48

Which structure in the figure is a receptor sensitive to pressure?

A)A
B)G
C)F
D)H
E)I

Question 49

Which of the following best describes the events occurring at point B in the diagram of deep wound healing shown below?

A)Blood clot is forming.
B)New collagen fibers are forming.
C)Damaged blood vessels are being repaired.
D)Epithelium is migrating across wound.
E)Scar tissue is forming.

Question 50

In the diagram,which layer is the stratum corneum?

A)E
B)F
C)G
D)H
E)I

Question 51

Which of the labeled cells in the diagram of deep wound healing shown below has phagocytic properties?

A)C
B)E
C)F
D)All of these answer choices are correct.
E)Both E and F

Question 52

Which of the following best describes the events occurring at point A in the diagram of deep wound healing shown below?

A)Blood clot is forming.
B)New collagen fibers are forming.
C)Damaged blood vessels are being repaired.
D)Epithelium is migrating across wound.
E)Scar tissue is forming.

Question 53

In the diagram,which is the hair matrix?

A)A
B)B
C)C
D)D
E)G

Question 54

Which letter is pointing to the subcutaneous layer of the skin in the figure?

A)C
B)E
C)B
D)J
E)I

Question 55

Which structures are dermal papillae?

A)A
B)F
C)G
D)H
E)I

Question 56

Which structure in the figure produces a protein that helps protect the skin and underlying tissues from heat,microbes and chemicals?

A)A
B)B
C)C
D)D
E)E

Question 57

Which structures in the figure are sensitive to warmth,coolness and itching?

A)A
B)G
C)F
D)H
E)J

Question 58

Which structure is an eccrine sweat gland?

A)A
B)F
C)G
D)H
E)I

Question 59

The corpuscle of touch (Meissner corpuscle)would be found in which region of the skin shown in the figure?

A)B
B)D
C)E
D)J
E)None of these answer choices are correct.

Question 60

In the figure of a sagittal section of a fingernail shown,where is the lunula?

A)A
B)B
C)C
D)D
E)E

Question 61

"Goose bumps" are caused by

A)action of arrector pili muscles.
B)secretions from the sudoriferous glands.
C)contraction of dermal papillae.
D)stimulation of hair root plexus.
E)secretions from the sebaceous gland.

Question 62

Which condition results from androgens inhibiting hair growth in genetically predisposed adults?

A)hirsutism
B)pallor
C)jaundice
D)male-pattern baldness
E)erythema

Question 63

Which of the following chemicals does NOT contribute to the color of human skin?

A)carotene
B)hemoglobin
C)pheomelanin
D)eumelanin
E)melatonin

Question 64

Which of the following is NOT a homeostatic contribution of skin?

A)Help provide calcium ions needed for muscle contraction
B)Provide sensory input to the brain
C)Help activate vitamin B
D)Help activate vitamins D
E)Thermoregulation

Question 65

Describe the structure and function of the different types of exocrine glands found in the skin

Question 66

Which condition is due to a buildup of bilirubin pigment in the skin?

A)hirsutism
B)pallor
C)jaundice
D)androgenic alopecia
E)erythema

Question 67

From which of the primary germ layers of the embryo does the epidermis of the skin develop?

A)Endoderm
B)Ectoderm
C)Mesoderm
D)All of these choices are correct.
E)Both endoderm and ectoderm.

Question 68

Which of the following terms refers to paleness of the skin such as seen in patients with shock or anemia?

A)hirsutism
B)pallor
C)jaundice
D)androgenic alopecia
E)erythema

Question 69

Which of the following terms refers to a hardened and thickened area of skin resulting from persistent pressure and friction?

A)callus
B)blister
C)wart
D)papule
E)fever blister

Question 70

In the diagram,which is the papilla of the hair?

A)A
B)C
C)E
D)F
E)G

Question 71

You stepped on a nail.List the sequential layers (or strata)of the epidermis that the nail penetrated through to finally reach the dermis.

A)basale,spinosum,granulosom,corneum
B)granulosom,spinosum,lucidum,corneum,basale
C)corneum,lucidum,granulosom,spinosum,basale
D)corneum,granulosom,spinosum,basale
E)corneum,granulosom,lucidum,spinosum,basale

Question 72

Which of the following terms refers to an irregular tear of the skin?

A)abrasion
B)papule
C)keloid
D)laceration
E)cyst

Question 73

Which of the following terms refers to an inflammation of the skin characterized by patches of redness,blistering,and extreme itching?

A)papule
B)laceration
C)keratosis
D)frostbite
E)eczema

Question 74

Which of the following terms refers to reddened,elevated,and itchy patches of skin commonly caused by emotional stress,physical trauma,or certain food allergies?

A)wart
B)hives
C)papule
D)cyst
E)eczema