Question 1

Nails

Accepted Answer

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

Question 2

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

Accepted Answer

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

Question 3

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

Accepted Answer

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

Question 4

The vesicles that contain melanin are called ______.

Accepted Answer

A)  keratinocytes 
B)  Golgi apparatus 
C)  melanosomes 
D)  melanocytes 
A)  keratinocytes 
B)  Golgi apparatus 
C)  melanosomes 
D)  melanocytes

Question 5

Impetigo is caused by the bacterium

Accepted Answer

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

Question 6

The skin that covers the lateral and proximal edges of the nail is the

Accepted Answer

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

Question 7

Bob was completely bald on the top of his head by the time he was 35 years of age. Bob noticed he produced abundant sweat on his head when he exercised. He also noticed that his scalp was no longer oily. Which of the following changes account for the observations? (1) He has fewer functional hair follicles now.
(2) He has fewer functional sebaceous glands now.
(3) He has fewer merocrine sweat glands now.
(4) He has fewer apocrine sweat glands now.

Accepted Answer

A)  1, 3, 4 
B)  1, 2, 3, 4 
C)  1, 2 
D)  1, 2, 4 
E)  1, 2, 3 
A)  1, 3, 4 
B)  1, 2, 3, 4 
C)  1, 2 
D)  1, 2, 4 
E)  1, 2, 3

Question 8

This epidermal stratum has several layers of cells held together by desmosomes.

Accepted Answer

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

Question 9

At birth the hairs of the scalp, eyelids, and eyebrows are replaced by coarser pigmented hairs called

Accepted Answer

A)  lanugo hairs. 
B)  primary hairs. 
C)  pubic hairs. 
D)  vellus hairs. 
E)  terminal hairs. 
A)  lanugo hairs. 
B)  primary hairs. 
C)  pubic hairs. 
D)  vellus hairs. 
E)  terminal hairs.

Question 10

Adipose tissue in the hypodermis

Accepted Answer

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

Question 11

Eccrine sweat glands

Accepted Answer

A)  are not involved in the homeostasis of body temperature. 
B)  produce a secretion that oils the hair and skin. 
C)  serve as "anchors" for the arrector pili muscles. 
D)  produce a secretion that protects the body from growth of bacteria. 
E)  aid in cooling the body. 
A)  are not involved in the homeostasis of body temperature. 
B)  produce a secretion that oils the hair and skin. 
C)  serve as "anchors" for the arrector pili muscles. 
D)  produce a secretion that protects the body from growth of bacteria. 
E)  aid in cooling the body.

Question 12

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

Accepted Answer

A)  albinism. 
B)  cyanosis. 
C)  carotene. 
D)  dermatitis. 
E)  melanosomes. 
A)  albinism. 
B)  cyanosis. 
C)  carotene. 
D)  dermatitis. 
E)  melanosomes.

Question 13

The distal portion of the nail is the

Accepted Answer

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

Question 14

If you accidentally cut your arm and see connective tissue and fat, which layer(s) was/were cut?

Accepted Answer

A)  stratum corneum 
B)  stratum basale 
C)  dermis 
D)  hypodermis 
E)  all of these layers 
A)  stratum corneum 
B)  stratum basale 
C)  dermis 
D)  hypodermis 
E)  all of these layers

Question 15

Melanin production can be influenced by

Accepted Answer

A)  genetics. 
B)  hormones. 
C)  exposure to sunlight. 
D)  pregnancy. 
E)  All of these choices are correct. 
A)  genetics. 
B)  hormones. 
C)  exposure to sunlight. 
D)  pregnancy. 
E)  All of these choices are correct.

Question 16

Which of the following is NOT a type of burn?

Accepted Answer

A)  partial-thickness burn 
B)  third-degree burn 
C)  full-thickness burn 
D)  second-degree burn 
E)  primary burn 
A)  partial-thickness burn 
B)  third-degree burn 
C)  full-thickness burn 
D)  second-degree burn 
E)  primary burn

Question 17

Another name for a bedsore is

Accepted Answer

A)  psoriasis. 
B)  vitiligo. 
C)  decubitus ulcer. 
D)  eczema. 
E)  bullae. 
A)  psoriasis. 
B)  vitiligo. 
C)  decubitus ulcer. 
D)  eczema. 
E)  bullae.

Question 18

What protein is found in the nails, hair, and epidermis?

Accepted Answer

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

Question 19

Rupturing the dermis may cause these to develop.

Accepted Answer

A)  reticular layer 
B)  papillary layer 
C)  hypodermis 
D)  epidermis 
E)  stretch marks 
A)  reticular layer 
B)  papillary layer 
C)  hypodermis 
D)  epidermis 
E)  stretch marks

Question 20

Keratinization

Accepted Answer

A)  occurs in the dermis. 
B)  produces a layer of cells that resist abrasion. 
C)  determines skin color. 
D)  results in the formation of new epidermal cells. 
E)  does not affect permeability characteristics of the epidermis. 
A)  occurs in the dermis. 
B)  produces a layer of cells that resist abrasion. 
C)  determines skin color. 
D)  results in the formation of new epidermal cells. 
E)  does not affect permeability characteristics of the epidermis.

Exam 5: Integumentary System

Nails

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

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

The vesicles that contain melanin are called ______.

Impetigo is caused by the bacterium

The skin that covers the lateral and proximal edges of the nail is the

This epidermal stratum has several layers of cells held together by desmosomes.

At birth the hairs of the scalp, eyelids, and eyebrows are replaced by coarser pigmented hairs called

Adipose tissue in the hypodermis

Eccrine sweat glands

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

The distal portion of the nail is the

If you accidentally cut your arm and see connective tissue and fat, which layer(s) was/were cut?

Melanin production can be influenced by

Which of the following is NOT a type of burn?

Another name for a bedsore is

What protein is found in the nails, hair, and epidermis?

Rupturing the dermis may cause these to develop.

Keratinization

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

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