Question 1

By covering the whole body surface, the skin acts as a protective barrier and plays a role in ________.

Accepted Answer

A)  excretion 
B)  immunity 
C)  circulation 
D)  respiration 
E)  digestion 
A)  excretion 
B)  immunity 
C)  circulation 
D)  respiration 
E)  digestion

Question 2

Impetigo is caused by the bacterium ________.

Accepted Answer

A)  Propionibacterium 
B)  Staphylococcus 
C)  Streptococcus 
D)  Herpes 
E)  Luteus 
A)  Propionibacterium 
B)  Staphylococcus 
C)  Streptococcus 
D)  Herpes 
E)  Luteus

Question 3

A burn classified as partial thickness could be ________.

Accepted Answer

A)  first or second degree 
B)  second or third degree 
C)  epidermal or dermal 
D)  thin or deep 
A)  first or second degree 
B)  second or third degree 
C)  epidermal or dermal 
D)  thin or deep

Question 4

Excessive shedding of this layer of the epidermis of the scalp is responsible for dandruff.

Accepted Answer

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

Question 5

A yellow pigment derived from plants that can impart a yellow color to the skin is ________.

Accepted Answer

A)  melanin 
B)  keratin 
C)  collagen 
D)  carotene 
E)  elastin 
A)  melanin 
B)  keratin 
C)  collagen 
D)  carotene 
E)  elastin

Question 6

Adipose tissue in the subcutaneous layer

Accepted Answer

A)  serves as a storage site for lipids, which can be used for energy. 
B)  helps to lower body temperature. 
C)  provides protection against infection. 
D)  is absent in infants. 
E)  connects the dermis with the epidermis. 
A)  serves as a storage site for lipids, which can be used for energy. 
B)  helps to lower body temperature. 
C)  provides protection against infection. 
D)  is absent in infants. 
E)  connects the dermis with the epidermis.

Question 7

Indicate the statements that correctly describe partial thickness burns. (Check all that apply.)

Accepted Answer

A)  They are subdivided into first- and second-degree burns. 
B)  They may involve only the epidermis. 
C)  They are also called third degree burns. 
D)  They involve the complete destruction of the epidermis and dermis. 
A)  They are subdivided into first- and second-degree burns. 
B)  They may involve only the epidermis. 
C)  They are also called third degree burns. 
D)  They involve the complete destruction of the epidermis and dermis.

Question 8

Nail cells are produced by the ________.

Accepted Answer

A)  lunula 
B)  cuticle 
C)  nail body 
D)  nail matrix 
E)  nail groove 
A)  lunula 
B)  cuticle 
C)  nail body 
D)  nail matrix 
E)  nail groove

Question 9

-What does structure "E" represent on the diagram?

Accepted Answer

A)  Hair follicle 
B)  Arrector pili 
C)  Epidermis and dermis 
D)  Subcutaneous tissue 
E)  Sebaceous gland 
A)  Hair follicle 
B)  Arrector pili 
C)  Epidermis and dermis 
D)  Subcutaneous tissue 
E)  Sebaceous gland

Question 10

The proximal portion of the nail is the ________.

Accepted Answer

A)  nail root 
B)  nail body 
C)  nail fold 
D)  eponychium 
E)  hyponychium 
A)  nail root 
B)  nail body 
C)  nail fold 
D)  eponychium 
E)  hyponychium

Question 11

On coming inside from the cold, students notice that their cheeks are red. This results from

Accepted Answer

A)  constriction of the blood vessels in the epidermis of the cheeks. 
B)  dilation of the blood vessels in the dermis of the cheeks. 
C)  damage to the epidermis by the cold. 
D)  constriction of the sweat glands in the cheeks. 
E)  increased permeability of superficial vessels. 
A)  constriction of the blood vessels in the epidermis of the cheeks. 
B)  dilation of the blood vessels in the dermis of the cheeks. 
C)  damage to the epidermis by the cold. 
D)  constriction of the sweat glands in the cheeks. 
E)  increased permeability of superficial vessels.

Question 12

The dermis

Accepted Answer

A)  contains no blood vessels. 
B)  functions as padding and insulation. 
C)  is divided into three distinct layers. 
D)  is responsible for most of the skin's structural strength. 
E)  does not contain connective tissue. 
A)  contains no blood vessels. 
B)  functions as padding and insulation. 
C)  is divided into three distinct layers. 
D)  is responsible for most of the skin's structural strength. 
E)  does not contain connective tissue.

Question 13

Intact skin provides protection because

Accepted Answer

A)  it forms a physical barrier against the entry of microbes. 
B)  its secretions keep the skin slightly alkaline. 
C)  the skin contains components of the excretory system. 
D)  the skin enhances water loss from the body. 
E)  macrophages roam in the epidermis. 
A)  it forms a physical barrier against the entry of microbes. 
B)  its secretions keep the skin slightly alkaline. 
C)  the skin contains components of the excretory system. 
D)  the skin enhances water loss from the body. 
E)  macrophages roam in the epidermis.

Question 14

Name the layer from which fingernails and toenails are derived.

Accepted Answer

A)  Dermis 
B)  Epidermis 
C)  Subcutaneous tissue 
A)  Dermis 
B)  Epidermis 
C)  Subcutaneous tissue

Question 15

Melanin is found in which cells?

Accepted Answer

A)  Only melanocytes 
B)  Both melanocytes and keratinocytes 
C)  Only keratinocytes 
D)  Both melanocytes and Langerhans cells 
A)  Only melanocytes 
B)  Both melanocytes and keratinocytes 
C)  Only keratinocytes 
D)  Both melanocytes and Langerhans cells

Question 16

A skin cell in the stratum granulosum has experienced a mutation that altered its ability to produce keratin. Should this be a health concern for the individual?

Accepted Answer

A)  No, because cells of the stratum granulosum are dying cells that do not reproduce, so the mutation will be isolated to the one cell. 
B)  Yes, because cells of the stratum granulosum divide by mitosis to produce keratin to protect the skin. 
C)  No, cells of the stratum granulosum only produce the waterproofing material in the skin. 
D)  Yes, without normal cell function in the stratum granulosum, the skin will lose color due to lack of melanin production. 
A)  No, because cells of the stratum granulosum are dying cells that do not reproduce, so the mutation will be isolated to the one cell. 
B)  Yes, because cells of the stratum granulosum divide by mitosis to produce keratin to protect the skin. 
C)  No, cells of the stratum granulosum only produce the waterproofing material in the skin. 
D)  Yes, without normal cell function in the stratum granulosum, the skin will lose color due to lack of melanin production.

Question 17

This stratum contains many layers of dead squamous cells.

Accepted Answer

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

Question 18

-The figure illustrates the layers of the epidermis. Which layer of the epidermis is "C"?

Accepted Answer

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

Question 19

One type of experimental contraceptive device is a skin patch that contains a chemical absorbed through the skin. Which of the following substances might be the type of chemical involved?

Accepted Answer

A)  Proteins 
B)  Water-soluble substances 
C)  Lipid-soluble substances 
D)  Carbohydrates 
E)  Amino acids 
A)  Proteins 
B)  Water-soluble substances 
C)  Lipid-soluble substances 
D)  Carbohydrates 
E)  Amino acids

Question 20

The length of hair is determined by the

Accepted Answer

A)  size of the hair bulb. 
B)  angle of the hair root. 
C)  rate of hair growth. 
D)  length of the resting stage. 
E)  age of the person. 
A)  size of the hair bulb. 
B)  angle of the hair root. 
C)  rate of hair growth. 
D)  length of the resting stage. 
E)  age of the person.

Exam 5: Integumentary System

By covering the whole body surface, the skin acts as a protective barrier and plays a role in ________.

Impetigo is caused by the bacterium ________.

A burn classified as partial thickness could be ________.

Excessive shedding of this layer of the epidermis of the scalp is responsible for dandruff.

A yellow pigment derived from plants that can impart a yellow color to the skin is ________.

Adipose tissue in the subcutaneous layer

Indicate the statements that correctly describe partial thickness burns. (Check all that apply.)

Nail cells are produced by the ________.

-What does structure "E" represent on the diagram?

The proximal portion of the nail is the ________.

On coming inside from the cold, students notice that their cheeks are red. This results from

The dermis

Intact skin provides protection because

Name the layer from which fingernails and toenails are derived.

Melanin is found in which cells?

A skin cell in the stratum granulosum has experienced a mutation that altered its ability to produce keratin. Should this be a health concern for the individual?

This stratum contains many layers of dead squamous cells.

-The figure illustrates the layers of the epidermis. Which layer of the epidermis is "C"?

One type of experimental contraceptive device is a skin patch that contains a chemical absorbed through the skin. Which of the following substances might be the type of chemical involved?

The length of hair is determined by the

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joint and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: the Heart

Cardiovascular System: Blood Vessels and Circulation

Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition, Metabolism, and Temperature Regulation

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive System

Development, Growth, Aging, and Genetics

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