Question 1

The ________ in keratinocytes protects the epidermis and dermis from the harmful effects of sunlight.

Accepted Answer

A) sebum 
B) hemoglobin 
C) melanin 
D) carotene 
E) keratin 
A) sebum 
B) hemoglobin 
C) melanin 
D) carotene 
E) keratin

Question 2

________ sweat glands are widely distributed across the body surface,________ glands are located wherever hair follicles exist,and ________ sweat glands are found only in a few areas.

Accepted Answer

A) Sebaceous; merocrine; apocrine 
B) Apocrine; merocrine; sebaceous 
C) Merocrine; sebaceous; apocrine 
D) Merocrine; apocrine; sebaceous 
E) Apocrine; sebaceous; merocrine 
A) Sebaceous; merocrine; apocrine 
B) Apocrine; merocrine; sebaceous 
C) Merocrine; sebaceous; apocrine 
D) Merocrine; apocrine; sebaceous 
E) Apocrine; sebaceous; merocrine

Question 3

A bacterial infection that is often fatal in burn patients is called

Accepted Answer

A) sepsis. 
B) necrosis. 
C) toxis. 
D) pernicious. 
E) noxious. 
A) sepsis. 
B) necrosis. 
C) toxis. 
D) pernicious. 
E) noxious.

Question 4

The layer of the skin that contains bundles of collagen and elastic fibers responsible for the strength of the skin is the ________ layer.

Accepted Answer

A) papillary 
B) reticular 
C) epidermal 
D) subcutaneous 
E) hypodermal 
A) papillary 
B) reticular 
C) epidermal 
D) subcutaneous 
E) hypodermal

Question 5

Which of the following statements concerning hair is false?

Accepted Answer

A) The medulla is the soft core of the hair. 
B) The cortex of the hair is composed of hard keratin. 
C) Terminal hairs are heavy and more darkly pigmented than other types of hair. 
D) Club hair is hair that has ceased growing. 
E) Scalp hairs grow constantly throughout life. 
A) The medulla is the soft core of the hair. 
B) The cortex of the hair is composed of hard keratin. 
C) Terminal hairs are heavy and more darkly pigmented than other types of hair. 
D) Club hair is hair that has ceased growing. 
E) Scalp hairs grow constantly throughout life.

Question 6

Characteristics of the epidermis include

Accepted Answer

A) multilayered. 
B) flexible. 
C) contains desmosomes. 
D) serves as UV radiation protection. 
E) All of the answers are correct. 
A) multilayered. 
B) flexible. 
C) contains desmosomes. 
D) serves as UV radiation protection. 
E) All of the answers are correct.

Question 7

Jaundice is indicated by a(n)________ skin coloration.

Accepted Answer

A) reddish 
B) yellowish 
C) orange 
D) bluish 
E) brown 
A) reddish 
B) yellowish 
C) orange 
D) bluish 
E) brown

Question 8

The epidermis of the skin is composed of what type of tissue?

Accepted Answer

A) keratinized stratified squamous epithelium 
B) simple squamous epithelium 
C) transitional epithelium 
D) areolar connective tissue 
E) nonkeratinized stratified squamous epithelium 
A) keratinized stratified squamous epithelium 
B) simple squamous epithelium 
C) transitional epithelium 
D) areolar connective tissue 
E) nonkeratinized stratified squamous epithelium

Question 9

The highest concentration of merocrine sweat glands is found

Accepted Answer

A) in the axillae. 
B) on the chest. 
C) on the palms of the hands. 
D) on the upper back. 
E) surrounding the genitals. 
A) in the axillae. 
B) on the chest. 
C) on the palms of the hands. 
D) on the upper back. 
E) surrounding the genitals.

Question 10

Explain why warm,dry climates feel cooler than warm,humid climates,even though the air temperatures are the same.

Accepted Answer

In arid environments,sensible perspirati

Question 11

Accumulations of fluid within the epidermis or between the epidermis and the dermis is/are called

Accepted Answer

A) keloids. 
B) scabs. 
C) blisters. 
D) scars. 
E) pus. 
A) keloids. 
B) scabs. 
C) blisters. 
D) scars. 
E) pus.

Question 12

The ________ glands in the axilla become active at the time of puberty.

Accepted Answer

A) ceruminous 
B) apocrine sweat 
C) merocrine sweat 
D) sebaceous 
E) axillary 
A) ceruminous 
B) apocrine sweat 
C) merocrine sweat 
D) sebaceous 
E) axillary

Question 13

Earwax is produced by ________ glands.

Accepted Answer

A) sebaceous 
B) apocrine sweat 
C) merocrine sweat 
D) ceruminous 
E) eccrine sweat 
A) sebaceous 
B) apocrine sweat 
C) merocrine sweat 
D) ceruminous 
E) eccrine sweat

Question 14

Accessory structures of the skin include all of the following except

Accepted Answer

A) hair follicles. 
B) sebaceous glands. 
C) sweat glands. 
D) epidermis. 
E) nails. 
A) hair follicles. 
B) sebaceous glands. 
C) sweat glands. 
D) epidermis. 
E) nails.

Question 15

Nail production occurs at the nail

Accepted Answer

A) body. 
B) bed. 
C) root. 
D) cuticle. 
E) hyponychium. 
A) body. 
B) bed. 
C) root. 
D) cuticle. 
E) hyponychium.

Question 16

Coarse pigmented hairs are called ________ hairs.

Accepted Answer

A) veneer 
B) gossamer 
C) lanugo 
D) vellus 
E) terminal 
A) veneer 
B) gossamer 
C) lanugo 
D) vellus 
E) terminal

Question 17

Which of the following is correct about Lanugo hairs?

Accepted Answer

A) also known as "peach fuzz" 
B) persists throughout the entire life 
C) deeply pigmented and somewhat coarse 
D) exists primarily in fetuses 
E) never found on the feet 
A) also known as "peach fuzz" 
B) persists throughout the entire life 
C) deeply pigmented and somewhat coarse 
D) exists primarily in fetuses 
E) never found on the feet

Question 18

While walking barefoot on the beach,Joe stepped on a thorn that penetrated through the sole of his foot to the dermis.How many layers of epidermis did the thorn penetrate?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 19

Charlie is badly burned in an accident.When he reaches the emergency room,the examining physician finds that he can remove entire hair follicles from Charlie's arm when he gently pulls on a hair with his forceps.Charlie is suffering from a(n)________ burn.

Accepted Answer

A) first-degree 
B) second-degree 
C) third-degree 
D) partial-thickness 
E) epidermal 
A) first-degree 
B) second-degree 
C) third-degree 
D) partial-thickness 
E) epidermal

Question 20

All of the following are true of the pigment melanin,except that it

Accepted Answer

A) decreases in concentration within cells during exposure to the sun. 
B) is usually some shade of brown or black. 
C) protects DNA from the damaging effects of UV radiation. 
D) is produced from the amino acid tyrosine. 
E) is produced by cells called melanocytes. 
A) decreases in concentration within cells during exposure to the sun. 
B) is usually some shade of brown or black. 
C) protects DNA from the damaging effects of UV radiation. 
D) is produced from the amino acid tyrosine. 
E) is produced by cells called melanocytes.

Exam 5: The Integumentary System

The ________ in keratinocytes protects the epidermis and dermis from the harmful effects of sunlight.

________ sweat glands are widely distributed across the body surface,________ glands are located wherever hair follicles exist,and ________ sweat glands are found only in a few areas.

A bacterial infection that is often fatal in burn patients is called

The layer of the skin that contains bundles of collagen and elastic fibers responsible for the strength of the skin is the ________ layer.

Which of the following statements concerning hair is false?

Characteristics of the epidermis include

Jaundice is indicated by a(n)________ skin coloration.

The epidermis of the skin is composed of what type of tissue?

The highest concentration of merocrine sweat glands is found

Explain why warm,dry climates feel cooler than warm,humid climates,even though the air temperatures are the same.

Accumulations of fluid within the epidermis or between the epidermis and the dermis is/are called

The ________ glands in the axilla become active at the time of puberty.

Earwax is produced by ________ glands.

Accessory structures of the skin include all of the following except

Nail production occurs at the nail

Coarse pigmented hairs are called ________ hairs.

Which of the following is correct about Lanugo hairs?

While walking barefoot on the beach,Joe stepped on a thorn that penetrated through the sole of his foot to the dermis.How many layers of epidermis did the thorn penetrate?

Charlie is badly burned in an accident.When he reaches the emergency room,the examining physician finds that he can remove entire hair follicles from Charlie's arm when he gently pulls on a hair with his forceps.Charlie is suffering from a(n)________ burn.

All of the following are true of the pigment melanin,except that it

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

Osseous Tissue and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Sensory Pathways and the Somatic Nervous System

The Autonomic Nervous System and Higher-Order Functions

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

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sweat glands are widely distributed across the body surface, glands are located wherever hair follicles exist,and sweat glands are found only in a few areas.