Question 1

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

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 2

The portion of the hair that extends above the surface of the skin is the ________.

Accepted Answer

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

Question 3

This condition is characterized by a thicker-than-normal stratus corneum producing large silvery scales.

Accepted Answer

A)  Psoriasis 
B)  Decubitus ulcer 
C)  Bullae 
D)  Vitiligo 
E)  Eczema 
A)  Psoriasis 
B)  Decubitus ulcer 
C)  Bullae 
D)  Vitiligo 
E)  Eczema

Question 4

A subcutaneous injection delivers medication into the ________.

Accepted Answer

A)  epidermis 
B)  dermis 
C)  subcutaneous layer 
D)  muscle 
E)  joint 
A)  epidermis 
B)  dermis 
C)  subcutaneous layer 
D)  muscle 
E)  joint

Question 5

The stratum basale

Accepted Answer

A)  is easily shed when you rub your hands together. 
B)  has a mixture of living and dead cells-mostly dead. 
C)  contains many blood vessels that nourish the epidermis. 
D)  contains cells that undergo mitosis to form new epidermal cells. 
E)  contains cells that undergo meiosis to form new epidermal cells. 
A)  is easily shed when you rub your hands together. 
B)  has a mixture of living and dead cells-mostly dead. 
C)  contains many blood vessels that nourish the epidermis. 
D)  contains cells that undergo mitosis to form new epidermal cells. 
E)  contains cells that undergo meiosis to form new epidermal cells.

Question 6

A genetic disease characterized by the inability to produce melanin is ________.

Accepted Answer

A)  psoriasis 
B)  albinism 
C)  dermatitis 
D)  melanoma 
E)  cyanosis 
A)  psoriasis 
B)  albinism 
C)  dermatitis 
D)  melanoma 
E)  cyanosis

Question 7

Which of the following statements concerning hair structure is true?

Accepted Answer

A)  Both the hair root and hair shaft contain living cells. 
B)  Undamaged hair follicles can help regenerate damaged epithelium. 
C)  The hair follicle has a hypodermal root sheath. 
D)  The matrix forms the hair surface. 
E)  The hair follicle is not associated with sebaceous glands. 
A)  Both the hair root and hair shaft contain living cells. 
B)  Undamaged hair follicles can help regenerate damaged epithelium. 
C)  The hair follicle has a hypodermal root sheath. 
D)  The matrix forms the hair surface. 
E)  The hair follicle is not associated with sebaceous glands.

Question 8

Which of the following functions is associated with the skin?

Accepted Answer

A)  Lipid production 
B)  Vitamin C production 
C)  Regulation of body pH 
D)  Protection against ultraviolet radiation of the sun 
E)  Vitamin A production 
A)  Lipid production 
B)  Vitamin C production 
C)  Regulation of body pH 
D)  Protection against ultraviolet radiation of the sun 
E)  Vitamin A production

Question 9

Describe the effect of exposure to UV rays on the skin.

Accepted Answer

A)  Decreased cancer risk 
B)  Increased melanin synthesis 
C)  Improved skin tone 
D)  Increased vitamin B production 
A)  Decreased cancer risk 
B)  Increased melanin synthesis 
C)  Improved skin tone 
D)  Increased vitamin B production

Question 10

Which durable protein is found in the nails, hair, and epidermis?

Accepted Answer

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

Question 11

Due to the contraction of smooth muscle in the walls of the dermal blood vessels,

Accepted Answer

A)  the blood vessels become dilated. 
B)  body heat is conserved. 
C)  more blood enters into the heart. 
D)  body temperature tends to drop in that area. 
E)  more blood flows to the skin. 
A)  the blood vessels become dilated. 
B)  body heat is conserved. 
C)  more blood enters into the heart. 
D)  body temperature tends to drop in that area. 
E)  more blood flows to the skin.

Question 12

Nails

Accepted Answer

A)  protect the ends of digits. 
B)  alternate between growing and resting stages. 
C)  grow from their free edges. 
D)  are part of the dermis. 
E)  are soft keratin. 
A)  protect the ends of digits. 
B)  alternate between growing and resting stages. 
C)  grow from their free edges. 
D)  are part of the dermis. 
E)  are soft keratin.

Question 13

The contraction of the arrector pili

Accepted Answer

A)  pulls the follicle into a more perpendicular position in relation to the skin surface 
B)  pulls the follicle into a more oblique angle in relation to the skin surface 
C)  does not affect the position of the hair relative to the epidermis. 
A)  pulls the follicle into a more perpendicular position in relation to the skin surface 
B)  pulls the follicle into a more oblique angle in relation to the skin surface 
C)  does not affect the position of the hair relative to the epidermis.

Question 14

Delicate unpigmented hairs that cover the fetus in early development are called ________ hairs.

Accepted Answer

A)  terminal 
B)  primary 
C)  lanugo 
D)  vellus 
E)  secondary 
A)  terminal 
B)  primary 
C)  lanugo 
D)  vellus 
E)  secondary

Question 15

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

Accepted Answer

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

Question 16

All of the following statements concerning hair are true except one. Identify the exception.

Accepted Answer

A)  The growth rate of all types of hair is the same. 
B)  Hair growth occurs in cycles, with growth and resting stages. 
C)  In pattern baldness, those hair follicles present begin to produce vellus hair. 
D)  Some loss of hair is normal and indicates old hairs are being pushed out by new hairs. 
E)  Genetic factors and testosterone cause pattern baldness. 
A)  The growth rate of all types of hair is the same. 
B)  Hair growth occurs in cycles, with growth and resting stages. 
C)  In pattern baldness, those hair follicles present begin to produce vellus hair. 
D)  Some loss of hair is normal and indicates old hairs are being pushed out by new hairs. 
E)  Genetic factors and testosterone cause pattern baldness.

Question 17

The subcutaneous tissue is part of the skin and the integumentary system.

Accepted Answer

A) True 
 B)False

Question 18

The nail is composed of cells of the ________.

Accepted Answer

A)  stratum corneum 
B)  stratum lucidum 
C)  stratum basale 
D)  stratum spinosum 
E)  All of the choices are correct. 
A)  stratum corneum 
B)  stratum lucidum 
C)  stratum basale 
D)  stratum spinosum 
E)  All of the choices are correct.

Question 19

-What does structure "C" 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 20

Lead poisoning can be detected by doing an analysis of ________.

Accepted Answer

A)  sweat 
B)  skin folds 
C)  nails 
D)  hair 
E)  skin 
A)  sweat 
B)  skin folds 
C)  nails 
D)  hair 
E)  skin

Exam 5: Integumentary System

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

The portion of the hair that extends above the surface of the skin is the ________.

This condition is characterized by a thicker-than-normal stratus corneum producing large silvery scales.

A subcutaneous injection delivers medication into the ________.

The stratum basale

A genetic disease characterized by the inability to produce melanin is ________.

Which of the following statements concerning hair structure is true?

Which of the following functions is associated with the skin?

Describe the effect of exposure to UV rays on the skin.

Which durable protein is found in the nails, hair, and epidermis?

Due to the contraction of smooth muscle in the walls of the dermal blood vessels,

Nails

The contraction of the arrector pili

Delicate unpigmented hairs that cover the fetus in early development are called ________ hairs.

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

All of the following statements concerning hair are true except one. Identify the exception.

The subcutaneous tissue is part of the skin and the integumentary system.

The nail is composed of cells of the ________.

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

Lead poisoning can be detected by doing an analysis of ________.

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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