Question 1

Which of the following cells and their functions are correctly matched?

Accepted Answer

A)  melanocytes protects cells in the stratum corneum from damaging effects of sun's rays
B)  keratinocytes provide sense of touch and pressure
C)  dendritic cells activate the immune system
D)  tactile cells protection

Question 2

In addition to the synthesis of vitamin D,keratinocytes are able to carry out some other biologically important functions.Name at least two of these other functions.

Accepted Answer

Keratinocyte enzymes can neutr...

Question 3

The papillary layer of the dermis is composed of loosely packed connective tissue with numerous peg-like projections that provide a great deal of surface area connecting the dermis to the epidermis.Which of the statements below do not represent benefits provided by the papillary layer's anatomy?

Accepted Answer

A)  The spaces in the connective tissue allow many small blood vessels to deliver nutrients and pickup waste diffusing from the superficial epidermal layers.
B)  The looseness allows for easy separation of the dead cell layer of epidermis to be shed.
C)  The high surface area allows for a stronger connection of dermis to epidermis.
D)  The looseness allows for phagocytes to roam through the tissue and search for infection.

Question 4

Which glands produce ear wax?

Accepted Answer

A)  merocrine glands
B)  ceruminous glands
C)  eccrine glands
D)  apocrine glands

Question 5

What are vellus hairs?

Accepted Answer

pale,fine body hair ...

Question 6

A splinter penetrated into the skin of the sole of the foot,almost to the papillary region of the dermis.Which layer of the epidermis would be the final layer injured?

Accepted Answer

A)  basale
B)  spinosum
C)  lucidum
D)  granulosum

Question 7

The arrector pili muscle's predominate,useful function in humans is to ________.

Accepted Answer

A)  stimulating faster hair growth
B)  assisting in the release sebum from nearby sebaceous glands
C)  preventing germs from entering the hair shaft
D)  provide warmth by making the hair stand on end

Question 8

The dense fibrous connective tissue portion of the skin is located in the reticular region of the dermis.

Accepted Answer

A) True 
 B)False

Question 9

The action of the arrector pili muscle is very similar in humans as it is in other mammals but its beneficial functions differ.

Accepted Answer

A) True 
 B)False

Question 10

The major regions of a hair shaft include all of the following except ________.

Accepted Answer

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

Question 11

In addition to protection (physical and chemical barrier) ,the skin serves other functions.Which of the following is another vital function of the skin?

Accepted Answer

A)  It aids in the transport of materials throughout the body.
B)  The cells of the epidermis store glucose as glycogen for energy.
C)  It converts modified epidermal cholesterol to a vitamin D precursor important to calcium metabolism.
D)  It absorbs vitamin C so that the skin will not be subject to diseases.

Question 12

Explain why soap that has an alkaline base may not be healthy for some patients to use daily.

Accepted Answer

The skin's acid mantle retards growth of...

Question 13

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.

Question 14

Burns are devastating and debilitating because of loss of fluids and electrolytes from the body.How do physicians estimate the extent of burn damage associated with such dangerous fluid loss?

Accepted Answer

A)  by using the "rule of nines"
B)  by measuring urinary output and fluid intake
C)  by observing the tissues that are usually moist
D)  through blood analysis

Question 15

The single most important risk for skin cancer is ________.

Accepted Answer

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

Question 16

The protein found in large amounts in the outermost layer of epidermal cells is collagen.

Accepted Answer

A) True 
 B)False

Question 17

The composition of the secretions of the eccrine glands is ________.

Accepted Answer

A)  primarily uric acid
B)  99% water,sodium chloride,trace amounts of wastes,and vitamin C
C)  metabolic wastes
D)  fatty substances,proteins,antibodies,and trace amounts of minerals and vitamins

Question 18

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)  Holds a portion of the bloods total volume to be shunted (diverted) to other organs when needed.
D)  Conducts endergonic metabolic chemical reactions using the suns energy to initiate vitamin D synthesis.

Question 19

The white crescent portion of the nail is called the ________.

Accepted Answer

The answer of The white crescent portion of the nail...

Question 20

Sudoriferous (sweat) glands are categorized as two distinct types.Which of the following are the two types of sweat glands?

Accepted Answer

A)  eccrine and apocrine
B)  mammary and ceruminous
C)  holocrine and mammary
D)  sebaceous and merocrine

Exam 5: The Integumentary System

The papillary layer of the dermis is composed of loosely packed connective tissue with numerous peg-like projections that provide a great deal of surface area connecting the dermis to the epidermis.Which of the statements below do not represent benefits provided by the papillary layer's anatomy?

Correct AnswerverifiedShow Answer

The protein found in large amounts in the outermost layer of epidermal cells is collagen.

Correct AnswerverifiedShow Answer

The arrector pili muscle's predominate,useful function in humans is to ________.

Correct AnswerverifiedShow Answer

In addition to the synthesis of vitamin D,keratinocytes are able to carry out some other biologically important functions.Name at least two of these other functions.

Correct AnswerverifiedKeratinocyte enzymes can neutr...View AnswerShow Answer

The action of the arrector pili muscle is very similar in humans as it is in other mammals but its beneficial functions differ.

Correct AnswerverifiedShow Answer

The single most important risk for skin cancer is ________.

Correct AnswerverifiedShow Answer

A splinter penetrated into the skin of the sole of the foot,almost to the papillary region of the dermis.Which layer of the epidermis would be the final layer injured?

Correct AnswerverifiedShow Answer

Which glands produce ear wax?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What are vellus hairs?

Correct Answerverifiedpale,fine body hair ...View AnswerShow Answer

Burns are devastating and debilitating because of loss of fluids and electrolytes from the body.How do physicians estimate the extent of burn damage associated with such dangerous fluid loss?

Correct AnswerverifiedShow Answer

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?

Correct AnswerverifiedShow Answer

The composition of the secretions of the eccrine glands is ________.

Correct AnswerverifiedShow Answer

The major regions of a hair shaft include all of the following except ________.

Correct AnswerverifiedShow Answer

The dense fibrous connective tissue portion of the skin is located in the reticular region of the dermis.

Correct AnswerverifiedShow Answer

Which of the following cells and their functions are correctly matched?

Correct AnswerverifiedShow Answer

Explain why soap that has an alkaline base may not be healthy for some patients to use daily.

Correct AnswerverifiedThe skin's acid mantle retards growth of...View AnswerShow Answer

Sudoriferous (sweat) glands are categorized as two distinct types.Which of the following are the two types of sweat glands?

Correct AnswerverifiedShow Answer

The white crescent portion of the nail is called the ________.

Correct AnswerverifiedShow Answer

In addition to protection (physical and chemical barrier) ,the skin serves other functions.Which of the following is another vital function of the skin?

Correct AnswerverifiedShow Answer

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Keratinocyte enzymes can neutr...
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pale,fine body hair ...
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Correct Answer
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Correct Answer
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Correct Answer
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The skin's acid mantle retards growth of...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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