Question 1

Which structure causes the hair to "stand on end"?

Accepted Answer

A)  Arrector pili 
B)  Root 
C)  Follicle 
D)  Shaft 
A)  Arrector pili 
B)  Root 
C)  Follicle 
D)  Shaft A

Question 2

Clubbing of the nails is a sign of (a)

Accepted Answer

A)  digestive disorder. 
B)  anemia. 
C)  lung disease. 
D)  melanoma. 
A)  digestive disorder. 
B)  anemia. 
C)  lung disease. 
D)  melanoma. C

Question 3

Which statement about body odor is accurate?

Accepted Answer

A)  Body odor is the natural smell of sweat from the apocrine glands. 
B)  Body odor results from the breakdown of foods in the body. 
C)  Sebum secreted by sebaceous glands contains chemicals that cause body odor. 
D)  Body odor results from bacteria acting on substances in sweat. 
A)  Body odor is the natural smell of sweat from the apocrine glands. 
B)  Body odor results from the breakdown of foods in the body. 
C)  Sebum secreted by sebaceous glands contains chemicals that cause body odor. 
D)  Body odor results from bacteria acting on substances in sweat. D

Question 4

Which glands have the most important role in maintaining constant core temperature?

Accepted Answer

A)  Apocrine glands 
B)  Ceruminous glands 
C)  Eccrine glands 
D)  Sebaceous glands 
A)  Apocrine glands 
B)  Ceruminous glands 
C)  Eccrine glands 
D)  Sebaceous glands

Question 5

What causes albinism?

Accepted Answer

A)  Impaired liver function 
B)  Lack of oxygen 
C)  Hormone deficiency 
D)  A genetic lack of melanin 
A)  Impaired liver function 
B)  Lack of oxygen 
C)  Hormone deficiency 
D)  A genetic lack of melanin

Question 6

Which structure nourishes each hair?

Accepted Answer

A)  Root 
B)  Follicle 
C)  Papilla 
D)  Arrector pili 
A)  Root 
B)  Follicle 
C)  Papilla 
D)  Arrector pili

Question 7

Which skin layer contains nerve endings,hair follicles,sebaceous glands,and sweat glands?

Accepted Answer

A)  Dermis 
B)  Epidermis 
C)  Hypodermis 
D)  Endodermis 
A)  Dermis 
B)  Epidermis 
C)  Hypodermis 
D)  Endodermis

Question 8

All skin cells in the epidermis are dead.

Accepted Answer

A) True 
 B)False

Question 9

The hypodermis is

Accepted Answer

A)  connective tissue that binds skin to underlying tissue. 
B)  epithelial tissue that protects the dermis from abrasion. 
C)  muscle tissue that supports the dermis. 
D)  nervous tissue that senses pain,temperature,and other sensations. 
A)  connective tissue that binds skin to underlying tissue. 
B)  epithelial tissue that protects the dermis from abrasion. 
C)  muscle tissue that supports the dermis. 
D)  nervous tissue that senses pain,temperature,and other sensations.

Question 10

Which statement best describes the life cycle of an epidermal cell?

Accepted Answer

A)  New epithelial cells in both the stratum basale and stratum corneum push older cells up to the outer surface where they die and slough off. 
B)  New epithelial cells in the stratum basale keratinize and slough off. 
C)  New epithelial cells in the stratum corneum undergo mitosis approximately every 2 weeks to replace dead cells. 
D)  New epithelial cells in the stratum basale push older cells upward; as the cells move up layer by layer,they toughen and die. 
A)  New epithelial cells in both the stratum basale and stratum corneum push older cells up to the outer surface where they die and slough off. 
B)  New epithelial cells in the stratum basale keratinize and slough off. 
C)  New epithelial cells in the stratum corneum undergo mitosis approximately every 2 weeks to replace dead cells. 
D)  New epithelial cells in the stratum basale push older cells upward; as the cells move up layer by layer,they toughen and die.

Question 11

What is the purpose of melanin?

Accepted Answer

A)  To protect underlying tissues from sun exposure 
B)  To protect the DNA in skin cells from sun exposure 
C)  To toughen skin cells after sun exposure 
D)  To provide nutrients to skin cells dried out from sun exposure 
A)  To protect underlying tissues from sun exposure 
B)  To protect the DNA in skin cells from sun exposure 
C)  To toughen skin cells after sun exposure 
D)  To provide nutrients to skin cells dried out from sun exposure

Question 12

How does the skin help regulate body temperature?

Accepted Answer

A)  Nerves in the dermis cause blood vessels to dilate or constrict to regulate heat loss. 
B)  Epidermal tissue prevents excess loss or absorption of water,which helps keep body temperature stable. 
C)  The dermis expands or contracts to conserve or expel heat. 
D)  Epidermal blood vessels sense the skin temperature and constrict to conserve heat. 
A)  Nerves in the dermis cause blood vessels to dilate or constrict to regulate heat loss. 
B)  Epidermal tissue prevents excess loss or absorption of water,which helps keep body temperature stable. 
C)  The dermis expands or contracts to conserve or expel heat. 
D)  Epidermal blood vessels sense the skin temperature and constrict to conserve heat.

Question 13

What are the primary components of the dermis?

Accepted Answer

A)  Collagen along with reticular and elastic fibers 
B)  Dermal and epidermal cells 
C)  Stem cells,melanocytes,hair follicles,and papillae 
D)  Keratinocytes,melanocytes,hair follicles,and papillae 
A)  Collagen along with reticular and elastic fibers 
B)  Dermal and epidermal cells 
C)  Stem cells,melanocytes,hair follicles,and papillae 
D)  Keratinocytes,melanocytes,hair follicles,and papillae

Question 14

Which statement about melanin is accurate?

Accepted Answer

A)  Melanin darkens in response to sun exposure to shade skin cells. 
B)  Melanocytes surround skin cells and increase in number as exposure to the sun increases. 
C)  Melanin replaces the cytoplasm as skin cells die. 
D)  Melanin forms a cap over the nucleus. 
A)  Melanin darkens in response to sun exposure to shade skin cells. 
B)  Melanocytes surround skin cells and increase in number as exposure to the sun increases. 
C)  Melanin replaces the cytoplasm as skin cells die. 
D)  Melanin forms a cap over the nucleus.

Question 15

Which function of the skin keeps bacteria from entering the body?

Accepted Answer

A)  Sensory perception 
B)  Barrier 
C)  Protection 
D)  Filtration 
A)  Sensory perception 
B)  Barrier 
C)  Protection 
D)  Filtration

Question 16

Apocrine glands contain a duct that leads to a hair follicle.

Accepted Answer

A) True 
 B)False

Question 17

Why are some full-thickness burns not painful initially?

Accepted Answer

A)  Full-thickness burns involve the entire epidermal layer,where there are no nerve endings. 
B)  Full-thickness burns usually occur slowly; therefore,the person generally does not experience pain until after the injury is complete. 
C)  Full-thickness burns extend through the muscle to the bone,where there are no nerve endings; pain occurs only as the burn starts to heal. 
D)  Full-thickness burns destroy nerve endings in the dermis,which prevents sensory input from reaching the brain. 
A)  Full-thickness burns involve the entire epidermal layer,where there are no nerve endings. 
B)  Full-thickness burns usually occur slowly; therefore,the person generally does not experience pain until after the injury is complete. 
C)  Full-thickness burns extend through the muscle to the bone,where there are no nerve endings; pain occurs only as the burn starts to heal. 
D)  Full-thickness burns destroy nerve endings in the dermis,which prevents sensory input from reaching the brain.

Question 18

New skin cells are produced in the

Accepted Answer

A)  stratum basale. 
B)  cutaneous membrane. 
C)  stratum corneum. 
D)  dermis. 
A)  stratum basale. 
B)  cutaneous membrane. 
C)  stratum corneum. 
D)  dermis.

Question 19

The stratum basale produces new skin cells that migrate to the stratum corneum to replace skin cells that have sloughed off.

Accepted Answer

A) True 
 B)False

Question 20

Approximately how much fluid does the body lose per day in insensible perspiration?

Accepted Answer

A)  250 mL 
B)  500 mL 
C)  650 mL 
D)  750 mL 
A)  250 mL 
B)  500 mL 
C)  650 mL 
D)  750 mL

Exam 5: Integumentary System

Which structure causes the hair to "stand on end"?

Clubbing of the nails is a sign of (a)

Which statement about body odor is accurate?

Which glands have the most important role in maintaining constant core temperature?

What causes albinism?

Which structure nourishes each hair?

Which skin layer contains nerve endings,hair follicles,sebaceous glands,and sweat glands?

All skin cells in the epidermis are dead.

The hypodermis is

Which statement best describes the life cycle of an epidermal cell?

What is the purpose of melanin?

How does the skin help regulate body temperature?

What are the primary components of the dermis?

Which statement about melanin is accurate?

Which function of the skin keeps bacteria from entering the body?

Apocrine glands contain a duct that leads to a hair follicle.

Why are some full-thickness burns not painful initially?

New skin cells are produced in the

The stratum basale produces new skin cells that migrate to the stratum corneum to replace skin cells that have sloughed off.

Approximately how much fluid does the body lose per day in insensible perspiration?

Orientation to the Human Body

Chemistry of Life

Cells

Tissues

Bones Bone Tissue

Skeletal System

Joints

Muscular System

Nervous System

Sense Organs

Endocrine System

Blood

Heart

Vascular System

Lymphatic Immune Systems

Respiratory System

Urinary System

Fluid,electrolyte Acid-Base Balance

Digestive System

Nutrition Metabolism

Human Microbiome

Reproductive Systems

Pregnancy Human Development

Heredity

Filters