Question 1

The stratum granulosum is sometimes called the barrier layer of the skin.

Accepted Answer

A) True 
 B)False  False

Question 2

Name and explain the methods of heat loss discussed in this chapter.

Accepted Answer

The methods of heat loss discussed in this chapter include conduction, convection, radiation, and evaporation.

Conduction is the transfer of heat through direct contact between two objects or substances. For example, when you touch a hot pan, heat is transferred from the pan to your hand through conduction.

Convection is the transfer of heat through the movement of fluids, such as air or water. This can occur through natural convection, where warmer air or water rises and cooler air or water sinks, or through forced convection, such as when a fan or pump is used to move air or water.

Radiation is the transfer of heat through electromagnetic waves, such as from the sun or a fire. This type of heat transfer does not require a medium and can occur through a vacuum.

Evaporation is the process by which a liquid turns into a gas, taking heat with it. This can occur on the surface of a body of water or from the surface of a wet object, such as sweat evaporating from the skin.

Understanding these methods of heat loss is important for designing efficient heating and cooling systems, as well as for understanding how to protect against heat loss in various environments.

Question 3

Hair follicles and skin glands, made up of epithelial tissue, extend from the epidermis into the reticular layer.

Accepted Answer

A) True 
 B)False  True

Question 4

A large amount of fat can be stored in the hypodermis.

Accepted Answer

A) True 
 B)False

Question 5

Malignant hyperthermia, heat exhaustion, and heat stroke are increasingly dangerous consequences of exposure to high environmental temperatures.

Accepted Answer

A) True 
 B)False

Question 6

Sweat that drips off you does very little to cool your body.

Accepted Answer

A) True 
 B)False

Question 7

The special network of nerves deep in the dermis that is capable of detecting pressure on the skin surface is called:

Accepted Answer

A) free nerve endings. 
B) Krause end bulbs. 
C) tactile corpuscle. 
D) somatic sensory receptors. 
A) free nerve endings. 
B) Krause end bulbs. 
C) tactile corpuscle. 
D) somatic sensory receptors.

Question 8

Because sweat can contain ammonia, urea, and other waste products, it plays a major role in the excretion of body wastes.

Accepted Answer

A) True 
 B)False

Question 9

The papillary layer of the dermis lies just below the dermal-epidermal junction.

Accepted Answer

A) True 
 B)False

Question 10

The papillary layer of the dermis:

Accepted Answer

A) is responsible for cleavage or tension lines in the skin. 
B) does not contain blood vessels. 
C) produces the ridges that make fingerprints. 
D) contains large deposits of fat. 
A) is responsible for cleavage or tension lines in the skin. 
B) does not contain blood vessels. 
C) produces the ridges that make fingerprints. 
D) contains large deposits of fat.

Question 11

After several months of extensive weight training, Nick has noticed pinkish, depressed furrows with jagged edges in his axillary region. These markings are a result of:

Accepted Answer

A) a decrease in dermal papillae. 
B) healing due to tiny tears in the dermis. 
C) malfunction of the microvilli. 
D) overproduction of the arrector pili muscles. 
A) a decrease in dermal papillae. 
B) healing due to tiny tears in the dermis. 
C) malfunction of the microvilli. 
D) overproduction of the arrector pili muscles.

Question 12

The time required for the completion of mitosis, differentiation, and the movement of new cells from the stratum basale to the surface of the skin is about:

Accepted Answer

A) 35 hours. 
B) 17 days. 
C) 22 days. 
D) 35 days. 
A) 35 hours. 
B) 17 days. 
C) 22 days. 
D) 35 days.

Question 13

The shedding of epithelial elements from the skin surface is called desquamation.

Accepted Answer

A) True 
 B)False

Question 14

Although body temperature normally changes very little during the course of a day, it is generally the lowest during:

Accepted Answer

A) the early morning. 
B) mid-afternoon. 
C) late afternoon. 
D) the evening. 
A) the early morning. 
B) mid-afternoon. 
C) late afternoon. 
D) the evening.

Question 15

Malignant melanoma has been steadily increasing in the United States for the past 20 years.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following is not a function of the skin?

Accepted Answer

A) Defense against disease organisms 
B) Synthesis of vitamin E 
C) Regulation of body temperature 
D) Excretion of water and salts 
A) Defense against disease organisms 
B) Synthesis of vitamin E 
C) Regulation of body temperature 
D) Excretion of water and salts

Question 17

If a person were in a totally bacteria-free environment, any sweat produced would have no odor.

Accepted Answer

A) True 
 B)False

Question 18

The cells of the germinal matrix are responsible for forming hair.

Accepted Answer

A) True 
 B)False

Question 19

Cells in the stratum lucidum do not have a high metabolic rate, because they usually do not have a nucleus.

Accepted Answer

A) True 
 B)False

Question 20

One way to stimulate hair growth is to cut it or shave it.

Accepted Answer

A) True 
 B)False

Exam 10: Skin

The stratum granulosum is sometimes called the barrier layer of the skin.

Name and explain the methods of heat loss discussed in this chapter.

Hair follicles and skin glands, made up of epithelial tissue, extend from the epidermis into the reticular layer.

A large amount of fat can be stored in the hypodermis.

Malignant hyperthermia, heat exhaustion, and heat stroke are increasingly dangerous consequences of exposure to high environmental temperatures.

Sweat that drips off you does very little to cool your body.

The special network of nerves deep in the dermis that is capable of detecting pressure on the skin surface is called:

Because sweat can contain ammonia, urea, and other waste products, it plays a major role in the excretion of body wastes.

The papillary layer of the dermis lies just below the dermal-epidermal junction.

The papillary layer of the dermis:

After several months of extensive weight training, Nick has noticed pinkish, depressed furrows with jagged edges in his axillary region. These markings are a result of:

The time required for the completion of mitosis, differentiation, and the movement of new cells from the stratum basale to the surface of the skin is about:

The shedding of epithelial elements from the skin surface is called desquamation.

Although body temperature normally changes very little during the course of a day, it is generally the lowest during:

Malignant melanoma has been steadily increasing in the United States for the past 20 years.

Which of the following is not a function of the skin?

If a person were in a totally bacteria-free environment, any sweat produced would have no odor.

The cells of the germinal matrix are responsible for forming hair.

Cells in the stratum lucidum do not have a high metabolic rate, because they usually do not have a nucleus.

One way to stimulate hair growth is to cut it or shave it.

Organization of the Body

Homeostasis

Chemistry of Life

Biomolecules

Cell Structure

Cell Function

Cell Growth and Development

Introduction to Tissues

Tissue Types

Skeletal Tissues

Axial Skeleton

Appendicular Skeleton

Articulations

Axial Muscles

Appendicular Muscles

Muscle Contraction

Nervous System Cells

Nerve Signaling

Central Nervous System

Peripheral Nervous System

Autonomic Nervous System

General Senses

Special Senses

Endocrine Regulation

Endocrine Glands

Blood

Heart

Blood Vessels

Circulation of the Blood

Lymphatic System

Innate Immunity

Adaptive Immunity

Stress

Respiratory Tract

Ventilation

Gas Exchange Transport

Upper Digestive Tract

Lower Digestive Tract

Digestion and Absorption

Nutrition and Metabolism

Urinary System

Fluid and Electrolyte Balance

Acid-Base Balance

Male Reproductive System

Female Reproductive System

Growth, Development, and Aging

Genetics and Heredity

Filters