Question 1

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

Accepted Answer

A)  hair follicle 
B)  sebaceous gland 
C)  epidermis and dermis 
D)  hypodermis 
E)  arrector pili 
A)  hair follicle 
B)  sebaceous gland 
C)  epidermis and dermis 
D)  hypodermis 
E)  arrector pili

Question 2

The length of hair is determined by the

Accepted Answer

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

Question 3

Which of the following skin changes is usually associated with aging?

Accepted Answer

A)  There is an increase in the number of elastic fibers in the skin. 
B)  Skin becomes thicker. 
C)  The amount of collagen in the dermis increases. 
D)  Loss of subcutaneous tissue contributes to sagging of the skin. 
E)  Localized increase in sebaceous glands leads to dry skin. 
A)  There is an increase in the number of elastic fibers in the skin. 
B)  Skin becomes thicker. 
C)  The amount of collagen in the dermis increases. 
D)  Loss of subcutaneous tissue contributes to sagging of the skin. 
E)  Localized increase in sebaceous glands leads to dry skin.

Question 4

Vitamin C is essential for normal collagen synthesis. If a child suffered from a vitamin C deficiency, which layer of the skin would be most affected?

Accepted Answer

A)  epidermis 
B)  stratum basale 
C)  stratum corneum 
D)  stratum granulosum 
E)  reticular layer of dermis 
A)  epidermis 
B)  stratum basale 
C)  stratum corneum 
D)  stratum granulosum 
E)  reticular layer of dermis

Question 5

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

Accepted Answer

A)  arrector pili 
B)  hypodermis 
C)  sebaceous gland 
D)  epidermis and dermis 
E)  hair follicle 
A)  arrector pili 
B)  hypodermis 
C)  sebaceous gland 
D)  epidermis and dermis 
E)  hair follicle

Question 6

Thin skin has only four epithelial strata. It lacks which of the following?

Accepted Answer

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

Question 7

Light-skinned races such as Caucasians have

Accepted Answer

A)  approximately the same number of melanocytes as races with darker skins. 
B)  more melanocytes than races with darker skins. 
C)  fewer melanocytes than races with darker skins. 
D)  more melanin in their skin. 
E)  a different kind of melanin in their skin. 
A)  approximately the same number of melanocytes as races with darker skins. 
B)  more melanocytes than races with darker skins. 
C)  fewer melanocytes than races with darker skins. 
D)  more melanin in their skin. 
E)  a different kind of melanin in their skin.

Question 8

Some drugs for treating acne include peroxides that increases 'peeling' or shedding of skin. This drugs' side effects include drying of the skin, redness, rashes, bleaching and possible loss of hair in areas in contact. Do peroxides have an effect on the sebum-production?

Accepted Answer

A)  Yes, the effect is on the dermis and the sebaceous glands are located there. 
B)  No, the effect is on the dermis and the sebaceous glands are located there. 
C)  No, the effect is on the epidermis and the sebaceous glands are located there. 
D)  Yes, the effect is on the epidermis and the sebaceous glands are located there. 
A)  Yes, the effect is on the dermis and the sebaceous glands are located there. 
B)  No, the effect is on the dermis and the sebaceous glands are located there. 
C)  No, the effect is on the epidermis and the sebaceous glands are located there. 
D)  Yes, the effect is on the epidermis and the sebaceous glands are located there.

Question 9

That portion of the hair that extends above the surface of the skin is the

Accepted Answer

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

Question 10

What type of burn involves damage to the epidermis, dermis, and subcutaneous tissue?

Accepted Answer

A)  Full thickness 
B)  Partial thickness 
C)  Second degree 
D)  Total dermal thickness 
E)  First degree 
A)  Full thickness 
B)  Partial thickness 
C)  Second degree 
D)  Total dermal thickness 
E)  First degree

Question 11

Skin glands do not include

Accepted Answer

A)  sweat glands. 
B)  sebaceous glands. 
C)  mammary glands. 
D)  salivary glands. 
E)  ceruminous glands. 
A)  sweat glands. 
B)  sebaceous glands. 
C)  mammary glands. 
D)  salivary glands. 
E)  ceruminous glands.

Question 12

The layer of the epidermis in which there is the greatest amount of mitotic activity.

Accepted Answer

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

Question 13

Intact skin provides protection because

Accepted Answer

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

Question 14

An expanded knob at the base of the hair root is the

Accepted Answer

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

Question 15

When the arrector pili muscles contract

Accepted Answer

A)  the body is able to lose heat. 
B)  no change is noted on the skin surface. 
C)  the hair on your arms and legs begins to curl. 
D)  the sweat glands empty their contents onto the surface of the skin. 
E)  "goose bumps" form on the skin. 
A)  the body is able to lose heat. 
B)  no change is noted on the skin surface. 
C)  the hair on your arms and legs begins to curl. 
D)  the sweat glands empty their contents onto the surface of the skin. 
E)  "goose bumps" form on the skin.

Question 16

Keratinocytes

Accepted Answer

A)  produce skin pigments in cell organelles called melanosomes. 
B)  are responsible for the reduction of water loss from the skin. 
C)  determine thickness of the skin. 
D)  are special cells of the immune system. 
E)  are found in both the dermal and the epidermal layers of the skin. 
A)  produce skin pigments in cell organelles called melanosomes. 
B)  are responsible for the reduction of water loss from the skin. 
C)  determine thickness of the skin. 
D)  are special cells of the immune system. 
E)  are found in both the dermal and the epidermal layers of the skin.

Question 17

The central axis of the hair is the

Accepted Answer

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

Question 18

The proximal portion of the nail is the

Accepted Answer

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

Question 19

Fingernails are comprised of:

Accepted Answer

A)  collagen deposited by the lunula and the matrix 
B)  proteins secreted by the nail groove from the matrix 
C)  epithelial and collagen fibers produced in the dermis 
D)  thin, dead scaly cells 
A)  collagen deposited by the lunula and the matrix 
B)  proteins secreted by the nail groove from the matrix 
C)  epithelial and collagen fibers produced in the dermis 
D)  thin, dead scaly cells

Question 20

In which layer of the epidermis are granules of keratohyalin formed?

Accepted Answer

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

Exam 5: Integumentary System

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

The length of hair is determined by the

Which of the following skin changes is usually associated with aging?

Vitamin C is essential for normal collagen synthesis. If a child suffered from a vitamin C deficiency, which layer of the skin would be most affected?

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

Thin skin has only four epithelial strata. It lacks which of the following?

Light-skinned races such as Caucasians have

Some drugs for treating acne include peroxides that increases 'peeling' or shedding of skin. This drugs' side effects include drying of the skin, redness, rashes, bleaching and possible loss of hair in areas in contact. Do peroxides have an effect on the sebum-production?

That portion of the hair that extends above the surface of the skin is the

What type of burn involves damage to the epidermis, dermis, and subcutaneous tissue?

Skin glands do not include

The layer of the epidermis in which there is the greatest amount of mitotic activity.

Intact skin provides protection because

An expanded knob at the base of the hair root is the

When the arrector pili muscles contract

Keratinocytes

The central axis of the hair is the

The proximal portion of the nail is the

Fingernails are comprised of:

In which layer of the epidermis are granules of keratohyalin formed?

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joints 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-Based Balance

Reproductive System

Development, Growth, Aging, and Genetics

Filters