Question 1

Which of the following examples listed below illustrates homeostasis maintained by a negative feedback?

Accepted Answer

A)  Release of chemical signals by keratinocytes that have been damaged by UV light that will increase the production of melanin. 
B)  Removal of nitrogenous compounds like urea within the sweat. 
C)  The near waterproof secretions of glycolipids that is released by cells in the stratum granulosum. 
D)  The secretion of antibacterial compounds in sebum. 
A)  Release of chemical signals by keratinocytes that have been damaged by UV light that will increase the production of melanin. 
B)  Removal of nitrogenous compounds like urea within the sweat. 
C)  The near waterproof secretions of glycolipids that is released by cells in the stratum granulosum. 
D)  The secretion of antibacterial compounds in sebum.

Question 2

The major regions of a hair shaft include all of the following EXCEPT _________.

Accepted Answer

A)  cortex 
B)  external root sheath 
C)  cuticle 
D)  medulla 
A)  cortex 
B)  external root sheath 
C)  cuticle 
D)  medulla

Question 3

The single most important risk for skin cancer is________ .

Accepted Answer

A)  genetics 
B)  use of farm chemicals 
C)  overexposure to UV radiation 
D)  race 
A)  genetics 
B)  use of farm chemicals 
C)  overexposure to UV radiation 
D)  race

Question 4

Water loss through the epidermis could cause a serious threat to health and well-being. Which of the following protects us against excessive water loss through the skin?

Accepted Answer

A)  Glycolipids that are secreted by keratinocytes into extracellular spaces. 
B)  The dermis is the thickest portion of the skin and water cannot pass through it. 
C)  Fat associated with skin prevents water loss. 
D)  The size and shape of the cells that make up the stratum spinosum, as well as the thick bundles of intermediate filaments. 
A)  Glycolipids that are secreted by keratinocytes into extracellular spaces. 
B)  The dermis is the thickest portion of the skin and water cannot pass through it. 
C)  Fat associated with skin prevents water loss. 
D)  The size and shape of the cells that make up the stratum spinosum, as well as the thick bundles of intermediate filaments.

Question 5

Which type of skin cancer is the most dangerous because it is highly metastatic and resistant to chemotherapy?

Accepted Answer

A)  melanoma 
B)  squamous cell carcinoma 
C)  adenoma 
D)  basal cell carcinoma 
A)  melanoma 
B)  squamous cell carcinoma 
C)  adenoma 
D)  basal cell carcinoma

Question 6

The function of the root hair plexus is to________ .

Accepted Answer

A)  allow the hair to assist in touch sensation 
B)  cause apocrine gland secretion into the hair follicle 
C)  serve as a source for new epidermal cells for hair growth after the resting stage has passed 
D)  bind the hair root to the dermis 
A)  allow the hair to assist in touch sensation 
B)  cause apocrine gland secretion into the hair follicle 
C)  serve as a source for new epidermal cells for hair growth after the resting stage has passed 
D)  bind the hair root to the dermis

Question 7

A light-skinned person may appear pink when they become over heated. The best explanation for this is________ .

Accepted Answer

A)  blood flow has increased to the sweat glands in order to increase their metabolic activity 
B)  the heart is pumping faster because the person was probably exercising 
C)  the melanocytes are responding to the heat of the sun and change the appearance of the skin with increased production 
D)  the blood vessels of the dermis have undergone vasodilation, bringing a greater volume of blood to the skin 
A)  blood flow has increased to the sweat glands in order to increase their metabolic activity 
B)  the heart is pumping faster because the person was probably exercising 
C)  the melanocytes are responding to the heat of the sun and change the appearance of the skin with increased production 
D)  the blood vessels of the dermis have undergone vasodilation, bringing a greater volume of blood to the skin

Question 8

Which layer of tissue is damaged in a first-degree burn?

Accepted Answer

A)  hypodermis 
B)  epidermis 
C)  dermis 
D)  both the epidermis and dermis 
A)  hypodermis 
B)  epidermis 
C)  dermis 
D)  both the epidermis and dermis

Question 9

Apocrine glands, which begin to function at puberty under hormonal influence, seem to play little role in thermoregulation. Where would we find these glands in the human body?

Accepted Answer

A)  in the axillary and anogenital area 
B)  in all body regions and buried deep in the dermis 
C)  in the palms of the hands and soles of the feet 
D)  beneath the flexure lines in the body 
A)  in the axillary and anogenital area 
B)  in all body regions and buried deep in the dermis 
C)  in the palms of the hands and soles of the feet 
D)  beneath the flexure lines in the body

Question 10

Melanocytes and keratinocytes work together in protecting the skin from UV damage when keratinocytes________ .

Accepted Answer

A)  provide the melanocyte with nutrients necessary for melanin synthesis 
B)  maintain the appropriate temperature so the product of the melanocyte will not denature 
C)  accumulate the melanin granules on their superficial portion, forming a UV-blocking pigment layer 
D)  maintain the appropriate pH in order for the melanocyte to synthesize melanin granules 
A)  provide the melanocyte with nutrients necessary for melanin synthesis 
B)  maintain the appropriate temperature so the product of the melanocyte will not denature 
C)  accumulate the melanin granules on their superficial portion, forming a UV-blocking pigment layer 
D)  maintain the appropriate pH in order for the melanocyte to synthesize melanin granules

Question 11

The Waldorf family was caught in a fire but escaped. Unfortunately, the father and daughter suffered burns.
The father had second-degree burns on his entire chest, abdomen, and both arms, and third-degree burns on his entire left lower extremity. The daughter suffered first-degree burns on her whole head and neck and second-degree burns throughout both lower extremities.
a. What percentage of the father's body was covered by burns?
b. What percentage of the daughter's body received first-degree burns?
c. What part of the daughter's body has both the dermis and epidermis involved?
d. The father experiences a good deal of pain in the area of the chest and abdomen, but little pain in the leg. Why?

Accepted Answer

a. 45% (18% anterior torso + 9% both arm

Question 12

Select the most correct statement concerning skin cancer.

Accepted Answer

A)  Most tumors that arise on the skin are malignant. 
B)  Basal cell carcinomas are the least common but most malignant. 
C)  Melanomas are rare but must be removed quickly to prevent them from metastasizing. 
D)  Squamous cell carcinomas arise from the stratum corneum. 
A)  Most tumors that arise on the skin are malignant. 
B)  Basal cell carcinomas are the least common but most malignant. 
C)  Melanomas are rare but must be removed quickly to prevent them from metastasizing. 
D)  Squamous cell carcinomas arise from the stratum corneum.

Question 13

What are the most important factors influencing hair growth?

Accepted Answer

A)  the size and number of hair follicles 
B)  age and glandular products 
C)  nutrition and hormones 
D)  sex and hormones 
A)  the size and number of hair follicles 
B)  age and glandular products 
C)  nutrition and hormones 
D)  sex and hormones

Question 14

Which of the following is NOT one of the functions of the skin?

Accepted Answer

A)  Delivers important information about our environmental conditions to our brains. 
B)  Gives the body its overall shape, loss of this function can be seen with the drooping of skin with age. 
C)  Conducts endergonic metabolic chemical reactions using the suns energy to initiate vitamin D synthesis. 
D)  Holds a portion of the bloods total volume to be shunted (diverted) to other organs when needed. 
A)  Delivers important information about our environmental conditions to our brains. 
B)  Gives the body its overall shape, loss of this function can be seen with the drooping of skin with age. 
C)  Conducts endergonic metabolic chemical reactions using the suns energy to initiate vitamin D synthesis. 
D)  Holds a portion of the bloods total volume to be shunted (diverted) to other organs when needed.

Question 15

The skin protects, but how does it protect us and from what? Describe how the epidermal dendritic cells and melanocytes protect us. Describe what these cells protect us from.

Accepted Answer

The epidermal dendritic cells act as ant

Which of the following examples listed below illustrates homeostasis maintained by a negative feedback?

The major regions of a hair shaft include all of the following EXCEPT _________.

The single most important risk for skin cancer is________ .

Water loss through the epidermis could cause a serious threat to health and well-being. Which of the following protects us against excessive water loss through the skin?

Which type of skin cancer is the most dangerous because it is highly metastatic and resistant to chemotherapy?

The function of the root hair plexus is to________ .

A light-skinned person may appear pink when they become over heated. The best explanation for this is________ .

Which layer of tissue is damaged in a first-degree burn?

Apocrine glands, which begin to function at puberty under hormonal influence, seem to play little role in thermoregulation. Where would we find these glands in the human body?

Melanocytes and keratinocytes work together in protecting the skin from UV damage when keratinocytes________ .

Select the most correct statement concerning skin cancer.

What are the most important factors influencing hair growth?

Which of the following is NOT one of the functions of the skin?

The skin protects, but how does it protect us and from what? Describe how the epidermal dendritic cells and melanocytes protect us. Describe what these cells protect us from.

The Human Body: an Orientation

Chemistry Comes Alive

Cells: the Living Units

Tissue: the Living Fabric

Bones and Skeletal Tissues

The Skeleton

Joints

Muscles and Muscle Tissue

The Muscular System

Fundamentals of the Nervous System and Nervous Tissue

The Central Nervous System

The Peripheral Nervous System and Reflex Activity

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels

The Lymphatic System and Lymphoid Organs and Tissues

Filters

Exam 5: The Integumentary System

Which of the following examples listed below illustrates homeostasis maintained by a negative feedback?

The major regions of a hair shaft include all of the following EXCEPT _________.

The single most important risk for skin cancer is________ .

Water loss through the epidermis could cause a serious threat to health and well-being. Which of the following protects us against excessive water loss through the skin?

Which type of skin cancer is the most dangerous because it is highly metastatic and resistant to chemotherapy?

The function of the root hair plexus is to________ .

A light-skinned person may appear pink when they become over heated. The best explanation for this is________ .

Which layer of tissue is damaged in a first-degree burn?

Apocrine glands, which begin to function at puberty under hormonal influence, seem to play little role in thermoregulation. Where would we find these glands in the human body?

Melanocytes and keratinocytes work together in protecting the skin from UV damage when keratinocytes________ .

Select the most correct statement concerning skin cancer.

What are the most important factors influencing hair growth?

Which of the following is NOT one of the functions of the skin?

The skin protects, but how does it protect us and from what? Describe how the epidermal dendritic cells and melanocytes protect us. Describe what these cells protect us from.

The Human Body: an Orientation

Chemistry Comes Alive

Cells: the Living Units

Tissue: the Living Fabric

Bones and Skeletal Tissues

The Skeleton

Joints

Muscles and Muscle Tissue

The Muscular System

Fundamentals of the Nervous System and Nervous Tissue

The Central Nervous System

The Peripheral Nervous System and Reflex Activity

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels

The Lymphatic System and Lymphoid Organs and Tissues

Filters