Question 1

The proximal portion of the nail is the

Accepted Answer

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

Question 2

The layer of epithelium that covers the skin is called the

Accepted Answer

A) hypodermis. 
B) epidermis. 
C) dermis. 
D) papillary layer. 
E) mesodermis. 
A) hypodermis. 
B) epidermis. 
C) dermis. 
D) papillary layer. 
E) mesodermis.

Question 3

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.

Question 4

Which type of skin cancer is the most common?

Accepted Answer

A) Kaposi's sarcoma 
B) melanoma 
C) psoriasis 
D) basal cell carcinoma 
E) squamous cell carcinoma 
A) Kaposi's sarcoma 
B) melanoma 
C) psoriasis 
D) basal cell carcinoma 
E) squamous cell carcinoma

Question 5

Which type of skin cancer is the most deadly?

Accepted Answer

A) Kaposi's sarcoma 
B) basal cell carcinoma 
C) melanoma 
D) squamous cell carcinoma 
E) psoriasis 
A) Kaposi's sarcoma 
B) basal cell carcinoma 
C) melanoma 
D) squamous cell carcinoma 
E) psoriasis

Question 6

A genetic disease characterized by the inability to produce melanin is

Accepted Answer

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

Question 7

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 8

By reducing body temperature during hot weather,skin helps to maintain

Accepted Answer

A) blood pH. 
B) body temperature homeostasis. 
C) brain activity. 
D) body structure. 
E) blood volume. 
A) blood pH. 
B) body temperature homeostasis. 
C) brain activity. 
D) body structure. 
E) blood volume.

Question 9

Melanin

Accepted Answer

A) is transferred to other cells by osmosis. 
B) is absent in individuals known as albinos. 
C) is a pigment produced by cells in the stratum corneum. 
D) makes the skin lighter. 
E) is increased with exposure to infrared light. 
A) is transferred to other cells by osmosis. 
B) is absent in individuals known as albinos. 
C) is a pigment produced by cells in the stratum corneum. 
D) makes the skin lighter. 
E) is increased with exposure to infrared light.

Question 10

The skin discoloration most likely to result from liver disease is

Accepted Answer

A) cyanosis. 
B) jaundice. 
C) hematoma. 
D) pallor. 
E) erythema. 
A) cyanosis. 
B) jaundice. 
C) hematoma. 
D) pallor. 
E) erythema.

Question 11

This is the dermal layer closest to the epidermis.

Accepted Answer

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

Question 12

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 13

That portion of the hair that extends above the surface of the skin is the

Accepted Answer

A) cuticle. 
B) hair bulb. 
C) root. 
D) medulla. 
E) shaft. 
A) cuticle. 
B) hair bulb. 
C) root. 
D) medulla. 
E) shaft.

Question 14

A malfunction of the process of keratinization results in the condition known as

Accepted Answer

A) acne. 
B) psoriasis. 
C) jaundice. 
D) cyanosis. 
E) impetigo. 
A) acne. 
B) psoriasis. 
C) jaundice. 
D) cyanosis. 
E) impetigo.

Question 15

Thick skin

Accepted Answer

A) has three different epidermal strata. 
B) has fewer layers of cells in the stratum corneum than thin skin. 
C) is found in areas subject to pressure or friction such as palms. 
D) is found covering most of the body. 
E) is determined by the thickness of the dermis. 
A) has three different epidermal strata. 
B) has fewer layers of cells in the stratum corneum than thin skin. 
C) is found in areas subject to pressure or friction such as palms. 
D) is found covering most of the body. 
E) is determined by the thickness of the dermis.

Question 16

Exposure to ultraviolet light causes the skin to darken by stimulating the

Accepted Answer

A) breakdown of carotene. 
B) breakdown of melanin. 
C) activity of the keratinocytes. 
D) activity of the enzyme tyrosinase. 
E) buildup of bilirubin. 
A) breakdown of carotene. 
B) breakdown of melanin. 
C) activity of the keratinocytes. 
D) activity of the enzyme tyrosinase. 
E) buildup of bilirubin.

Question 17

On coming inside from the cold,students notice that their cheeks are red.This results from

Accepted Answer

A) dilation of the blood vessels in the dermis of the cheeks. 
B) constriction of the blood vessels in the epidermis of the cheeks. 
C) increased permeability of superficial vessels. 
D) constriction of the sweat glands in the cheeks. 
E) damage to the epidermis by the cold. 
A) dilation of the blood vessels in the dermis of the cheeks. 
B) constriction of the blood vessels in the epidermis of the cheeks. 
C) increased permeability of superficial vessels. 
D) constriction of the sweat glands in the cheeks. 
E) damage to the epidermis by the cold.

Question 18

This is the site of fat storage in the skin.

Accepted Answer

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

Question 19

Which cells of the epidermis are part of the immune system?

Accepted Answer

A) keratinocytes 
B) Langerhans cells 
C) melanocytes 
D) fibroblasts 
E) Merkel cells 
A) keratinocytes 
B) Langerhans cells 
C) melanocytes 
D) fibroblasts 
E) Merkel cells

Question 20

-The figure illustrates keratinization in the epidermis.What layer of the epidermis is "D"?

Accepted Answer

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

Exam 5: Integumentary System

The proximal portion of the nail is the

The layer of epithelium that covers the skin is called the

Nails

Which type of skin cancer is the most common?

Which type of skin cancer is the most deadly?

A genetic disease characterized by the inability to produce melanin is

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

By reducing body temperature during hot weather,skin helps to maintain

Melanin

The skin discoloration most likely to result from liver disease is

This is the dermal layer closest to the epidermis.

Melanin production can be influenced by

That portion of the hair that extends above the surface of the skin is the

A malfunction of the process of keratinization results in the condition known as

Thick skin

Exposure to ultraviolet light causes the skin to darken by stimulating the

On coming inside from the cold,students notice that their cheeks are red.This results from

This is the site of fat storage in the skin.

Which cells of the epidermis are part of the immune system?

-The figure illustrates keratinization in the epidermis.What layer of the epidermis is "D"?

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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