Question 1

Which statement is NOT true of the arterioles in the dermis?

Accepted Answer

A) Vasodilation increases blood flow. 
B) Vasoconstriction occurs in cold weather. 
C) Vasodilation occurs in stress situations. 
D) Vasoconstriction decreases blood flow. 
A) Vasodilation increases blood flow. 
B) Vasoconstriction occurs in cold weather. 
C) Vasodilation occurs in stress situations. 
D) Vasoconstriction decreases blood flow. C

Question 2

The outer layer of the skin is the ___,and the inner layer of the skin is the ___.

Accepted Answer

A) dermis/superficial fascia 
B) epidermis/dermis 
C) dermis/epidermis 
D) epidermis/superficial fascia 
A) dermis/superficial fascia 
B) epidermis/dermis 
C) dermis/epidermis 
D) epidermis/superficial fascia B

Question 3

Which statement is NOT true of the epidermis?

Accepted Answer

A) Meiosis takes place in the stratum germinativum. 
B) The cells die as they are pushed toward the surface. 
C) Langerhans cells bring pathogens to lymph nodes. 
D) The epidermis has no capillaries of its own,and must rely on those of the dermis. 
A) Meiosis takes place in the stratum germinativum. 
B) The cells die as they are pushed toward the surface. 
C) Langerhans cells bring pathogens to lymph nodes. 
D) The epidermis has no capillaries of its own,and must rely on those of the dermis. A

Question 4

Vitamin D is produced in the skin from ___,and promotes absorption of ___ in the small intestine.

Accepted Answer

A) keratin/sodium 
B) melanin/iron 
C) cholesterol/calcium 
D) collagen/calcium 
A) keratin/sodium 
B) melanin/iron 
C) cholesterol/calcium 
D) collagen/calcium

Question 5

The growth of bacteria on the skin surface is inhibited by:

Accepted Answer

A) keratin 
B) sweat 
C) sebum 
D) melanin 
A) keratin 
B) sweat 
C) sebum 
D) melanin

Question 6

Which statement is NOT true of the skin?

Accepted Answer

A) Collagen provides strength to the epidermis. 
B) The epidermis is the outer layer. 
C) Stratified squamous epithelium forms the epidermis. 
D) The dermis is external to the subcutaneous tissue. 
A) Collagen provides strength to the epidermis. 
B) The epidermis is the outer layer. 
C) Stratified squamous epithelium forms the epidermis. 
D) The dermis is external to the subcutaneous tissue.

Question 7

The protein in the epidermis that prevents water loss is:

Accepted Answer

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

Question 8

Drying of the eardrum is prevented by:

Accepted Answer

A) serous fluid from serous glands 
B) sebum from sebaceous glands 
C) cerumen from ceruminous glands 
D) sweat from apocrine glands 
A) serous fluid from serous glands 
B) sebum from sebaceous glands 
C) cerumen from ceruminous glands 
D) sweat from apocrine glands

Question 9

Ultraviolet rays of the sun stimulate production of ___ in the skin.

Accepted Answer

A) keratin 
B) collagen 
C) melanin 
D) all of these 
A) keratin 
B) collagen 
C) melanin 
D) all of these

Question 10

The function of melanin is to protect living skin layers from more:

Accepted Answer

A) pressure 
B) friction 
C) UV rays 
D) color 
A) pressure 
B) friction 
C) UV rays 
D) color

Question 11

Vasoconstriction in the dermis is important to:

Accepted Answer

A) increase heat loss in a warm environment 
B) conserve heat in a warm environment 
C) increase heat loss in a cold environment 
D) conserve heat in a cold environment 
A) increase heat loss in a warm environment 
B) conserve heat in a warm environment 
C) increase heat loss in a cold environment 
D) conserve heat in a cold environment

Question 12

Drying of the skin and hair is prevented by:

Accepted Answer

A) serous fluid from serous glands 
B) sebum from sebaceous glands 
C) cerumen from ceruminous glands 
D) sweat from apocrine glands 
A) serous fluid from serous glands 
B) sebum from sebaceous glands 
C) cerumen from ceruminous glands 
D) sweat from apocrine glands

Question 13

Which statement is NOT true of human hair?

Accepted Answer

A) The hair root undergoes mitosis. 
B) A hair is formed in a structure called a follicle. 
C) All human hair grows continuously. 
D) The hair shaft is made of keratin. 
A) The hair root undergoes mitosis. 
B) A hair is formed in a structure called a follicle. 
C) All human hair grows continuously. 
D) The hair shaft is made of keratin.

Question 14

The Langerhans cells of the integumentary system are important for:

Accepted Answer

A) skin coloration 
B) defense against pathogens 
C) detecting changes in the external environment 
D) repair of minor breaks in the skin 
A) skin coloration 
B) defense against pathogens 
C) detecting changes in the external environment 
D) repair of minor breaks in the skin

Question 15

A hair follicle:

Accepted Answer

A) has its base in the dermis 
B) has a hair root at its base 
C) both A and B 
D) both A and B,and has a pilomotor muscle that can pull the follicle upright 
A) has its base in the dermis 
B) has a hair root at its base 
C) both A and B 
D) both A and B,and has a pilomotor muscle that can pull the follicle upright

Question 16

Subcutaneous adipose tissue has all of these functions except:

Accepted Answer

A) cushioning of some bones 
B) providing some insulation from cold 
C) storing excess,or potential,energy 
D) producing collagen fibers 
A) cushioning of some bones 
B) providing some insulation from cold 
C) storing excess,or potential,energy 
D) producing collagen fibers

Question 17

The function of keratin is to:

Accepted Answer

A) prevent the entry of water 
B) prevent the entry of pathogens 
C) both A and B 
D) both A and B,and prevent the loss of water 
A) prevent the entry of water 
B) prevent the entry of pathogens 
C) both A and B 
D) both A and B,and prevent the loss of water

Question 18

The subcutaneous tissue is made of:

Accepted Answer

A) squamous epithelium and areolar connective tissue 
B) adipose tissue and smooth muscle 
C) squamous epithelium and smooth muscle 
D) areolar connective tissue and adipose tissue 
A) squamous epithelium and areolar connective tissue 
B) adipose tissue and smooth muscle 
C) squamous epithelium and smooth muscle 
D) areolar connective tissue and adipose tissue

Question 19

The cutaneous receptors may be stimulated internally by:

Accepted Answer

A) the chickenpox virus 
B) a mosquito bite 
C) both A and B 
D) both A and B,and by poison ivy 
A) the chickenpox virus 
B) a mosquito bite 
C) both A and B 
D) both A and B,and by poison ivy

Question 20

A potentially serious consequence of profuse sweating is:

Accepted Answer

A) a fever 
B) dehydration 
C) an abnormally low body temperature 
D) an infection 
A) a fever 
B) dehydration 
C) an abnormally low body temperature 
D) an infection

Exam 6:The Integumentary System-Part C

Which statement is NOT true of the arterioles in the dermis?

The outer layer of the skin is the ___,and the inner layer of the skin is the ___.

Which statement is NOT true of the epidermis?

Vitamin D is produced in the skin from ___,and promotes absorption of ___ in the small intestine.

The growth of bacteria on the skin surface is inhibited by:

Which statement is NOT true of the skin?

The protein in the epidermis that prevents water loss is:

Drying of the eardrum is prevented by:

Ultraviolet rays of the sun stimulate production of ___ in the skin.

The function of melanin is to protect living skin layers from more:

Vasoconstriction in the dermis is important to:

Drying of the skin and hair is prevented by:

Which statement is NOT true of human hair?

The Langerhans cells of the integumentary system are important for:

A hair follicle:

Subcutaneous adipose tissue has all of these functions except:

The function of keratin is to:

The subcutaneous tissue is made of:

The cutaneous receptors may be stimulated internally by:

A potentially serious consequence of profuse sweating is:

Organization and General Plan of the Body-Part A

Organization and General Plan of the Body-Part B

Organization and General Plan of the Body-Part C

Some Basic Chemistry-Part A

Some Basic Chemistry-Part B

Some Basic Chemistry-Part C

Cells-Part A

Cells-Part B

Cells-Part C

Tissues and Membranes-Part A

Tissues and Membranes-Part B

Tissues and Membranes-Part C

The Integumentary System-Part A

The Integumentary System-Part B

The Skeletal System-Part A

The Skeletal System-Part B

The Skeletal System-Part C

The Muscular System-Part A

The Muscular System-Part B

The Muscular System-Part C

The Nervous System-Part A

The Nervous System-Part B

The Nervous System-Part C

The Senses-Part A

The Senses-Part B

The Senses-Part C

The Endocrine System-Part A

The Endocrine System-Part B

The Endocrine System-Part C

Blood-Part A

Blood-Part B

Blood-Part C

The Heart-Part A

The Heart-Part B

The Heart-Part C

The Vascular System-Part A

The Vascular System-Part B

The Vascular System-Part C

The Lymphatic System and Immunity-Part A

The Lymphatic System and Immunity-Part B

The Lymphatic System and Immunity-Part C

The Respiratory System-Part A

The Respiratory System-Part B

The Respiratory System-Part C

The Digestive System-Part A

The Digestive System-Part B

The Digestive System-Part C

Body Temperature and Metabolism-Part A

Body Temperature and Metabolism-Part B

Body Temperature and Metabolism-Part C

The Urinary System-Part A

The Urinary System-Part B

The Urinary System-Part C

Fluid–Electrolyte and Acid–Base Balance-Part A

Fluid–Electrolyte and Acid–Base Balance-Part B

Fluid–Electrolyte and Acid–Base Balance-Part C

The Reproductive Systems-Part A

The Reproductive Systems-Part B

The Reproductive Systems-Part C

The outer layer of the skin is the _,and the inner layer of the skin is the _.

Vitamin D is produced in the skin from _,and promotes absorption of _ in the small intestine.