Question 1

Describe the structural characteristics of the epidermis that contribute to its ability to protect the surface of an animal.

Accepted Answer

Multiple layers of cells in stratified s

Question 2

In the diagram of a hair root shown,which area is composed of dense connective tissue?

Accepted Answer

A) C 
B) D 
C) E 
D) F 
E) G 
A) C 
B) D 
C) E 
D) F 
E) G

Question 3

From which of the primary germ layers of the embryo does the epidermis of the skin develop?

Accepted Answer

A) Endoderm 
B) Ectoderm 
C) Mesoderm 
D) Both endoderm and ectoderm. 
A) Endoderm 
B) Ectoderm 
C) Mesoderm 
D) Both endoderm and ectoderm.

Question 4

When you are hot,blood vessels in the dermis_[dropdown 1] to maintain homeostasis.
When you are cold,blood vessels in the dermis [dropdown 2] to maintain homeostasis.
Heat loss from the body will[dropdown 3],when blood vessels in the dermis dilate.
Heat loss from the body will [dropdown 4] when blood vessels in the dermis constrict.
Drop Down Choices:
constrict,
decrease,
dilate
increase

Accepted Answer

1.dilate
2

Question 5

The buildup of bilirubin in an infant's blood can occur if the liver does not remove the chemical.This condition is

Accepted Answer

A) cyanosis 
B) pallor 
C) jaundice 
D) alopecia 
E) erythema 
A) cyanosis 
B) pallor 
C) jaundice 
D) alopecia 
E) erythema

Question 6

Which statements are true?
1)The majority of the skin does not contain stratum lucidum.
2)Stratum lucidum is found in areas of high friction,such as the palms and soles.
3)Live keratinocytes are located in the stratum lucidum.
4)Friction will cause the stratum lucidum to form calluses.

Accepted Answer

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

Question 7

Which statement best describes why the diagram represents thick skin? Choose the best answer.

Accepted Answer

A) Thick skin lacks melanocytes. 
B) Thick skin contains five stratums. 
C) Thick skin epithelia is vascular. 
D) Thick skin epithelia is avascular. 
E) Thick skin contains stem cells. 
A) Thick skin lacks melanocytes. 
B) Thick skin contains five stratums. 
C) Thick skin epithelia is vascular. 
D) Thick skin epithelia is avascular. 
E) Thick skin contains stem cells.

Question 8

Match the term with the best description
[dropdown 1]: Actively dividing cells of the nails.
[dropdown 2]: Hardened epithelial tissue above the hypnychium.
[dropdown 3]: Crescent shaped area that appears white due to thickened epithelial.
[dropdown 4]: Portion of the stratum corneum that grows onto the nail body.
Drop Down Choices:
cuticle
lunula
nail bed
nail matrix

Accepted Answer

nail matri

Question 9

Which structure in the figure produces a pigment that contributes to skin color and absorbs UV radiation?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) G 
A) A 
B) B 
C) C 
D) D 
E) G

Question 10

In the photomicrograph shown below,which layer is only seen in thick skin?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Question 11

Describe the structure and function of the different types of exocrine glands found in the skin

Accepted Answer

Sebaceous glands are oil glands.They are

Question 12

Describe the structure and function of arrector pili.

Accepted Answer

Arrector pili are smooth muscles that ex

Question 13

In the diagram of a hair root shown,where does melanin get deposited? Select all that apply.

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Question 14

In a skin infection,which cell will take up and process microbial antigens?

Accepted Answer

A) Intraepidermal macrophages (Langerhans cells) 
B) Melanocytes 
C) Tactile epithelial cells (Merkel cells) 
D) Stem Cells 
A) Intraepidermal macrophages (Langerhans cells) 
B) Melanocytes 
C) Tactile epithelial cells (Merkel cells) 
D) Stem Cells

Question 15

Choose the following statements that describe keratin.
1)Keratin is a tough,fibrous protein.
2)Keratin is used for pigmenting skin.
3)Keratin helps protect the skin.
4)Keratin participates in immune responses.
5)Keratin protects the skin from UV light.

Accepted Answer

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

Question 16

In the diagram,where does apoptosis occur?

Accepted Answer

A) E 
B) F 
C) G 
D) H 
E) I 
A) E 
B) F 
C) G 
D) H 
E) I

Question 17

You stepped on a nail.List the sequential strata of the epidermis that the nail penetrated through to reach the dermis.

Accepted Answer

A) basale,spinosum,granulosom,corneum 
B) granulosom,spinosum,lucidum,corneum,basale 
C) corneum,lucidum,granulosom,spinosum,basale 
D) corneum,granulosom,spinosum,basale 
E) corneum,granulosom,lucidum,spinosum,basale 
A) basale,spinosum,granulosom,corneum 
B) granulosom,spinosum,lucidum,corneum,basale 
C) corneum,lucidum,granulosom,spinosum,basale 
D) corneum,granulosom,spinosum,basale 
E) corneum,granulosom,lucidum,spinosum,basale

Question 18

In the photomicrograph shown below,which layer will contain melanocyte projections,keratinocytes and intraepidermal macrophages (Langerhan cells)?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Exam 5: The Integumentary System

Describe the structural characteristics of the epidermis that contribute to its ability to protect the surface of an animal.

In the diagram of a hair root shown,which area is composed of dense connective tissue?

From which of the primary germ layers of the embryo does the epidermis of the skin develop?

The buildup of bilirubin in an infant's blood can occur if the liver does not remove the chemical.This condition is

Which statements are true? 1)The majority of the skin does not contain stratum lucidum. 2)Stratum lucidum is found in areas of high friction,such as the palms and soles. 3)Live keratinocytes are located in the stratum lucidum. 4)Friction will cause the stratum lucidum to form calluses.

Which statement best describes why the diagram represents thick skin? Choose the best answer.

Which structure in the figure produces a pigment that contributes to skin color and absorbs UV radiation?

In the photomicrograph shown below,which layer is only seen in thick skin?

Describe the structure and function of the different types of exocrine glands found in the skin

Describe the structure and function of arrector pili.

In the diagram of a hair root shown,where does melanin get deposited? Select all that apply.

In a skin infection,which cell will take up and process microbial antigens?

Choose the following statements that describe keratin. 1)Keratin is a tough,fibrous protein. 2)Keratin is used for pigmenting skin. 3)Keratin helps protect the skin. 4)Keratin participates in immune responses. 5)Keratin protects the skin from UV light.

In the diagram,where does apoptosis occur?

You stepped on a nail.List the sequential strata of the epidermis that the nail penetrated through to reach the dermis.

In the photomicrograph shown below,which layer will contain melanocyte projections,keratinocytes and intraepidermal macrophages (Langerhan cells)?

An Introduction to the Human Body

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Skeletal System: Bone Tissue

The Skeletal System: the Axial Skeleton

The Skeletal System: The Appendicular Skeleton

Joints

Muscular Tissue

The Muscular System

Nervous Tissue

The Spinal Cord and Spinal Nerves

The Brain and Cranial Nerves

The Autonomic Nervous System

Sensory, Motor, and Integrative Systems

The Special Senses

The Endocrine System

The Cardiovascular System: the Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Hemodynamics

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Nutrition

The Urinary System

Fluid, Electrolyte, and Acidbase Homeostasis

The Reproductive Systems

Development and Inheritance

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