Question 1

Normally, which percentage of the cells in the stratum basale enter mitosis each day?

Accepted Answer

A)  20% to 25%
B)  10% to 12%
C)  18% to 20%
D)  35% to 40%

Question 2

Which cells originate in the bone marrow and are important in the immune function?

Accepted Answer

A)  Dendritic cells
B)  Melanocytes
C)  Keratinocytes
D)  Fibroblasts

Question 3

In the skin, the dermis:

Accepted Answer

A)  and epidermis are both epithelial tissue.
B)  and epidermis are both connective tissue.
C)  is connective tissue and the epidermis is epithelial tissue.
D)  is epithelial tissue and the epidermis is connective tissue.

Question 4

Match each term with its definition or description.
-Also called the superficial fascia

Accepted Answer

A)  Keratinocytes
B)  Hypodermis
C)  Papillary layer
D)  Pheomelanin
E)  MelanocytesF) Arrector pili musclesG) EumelaninH) Dendritic cellsI) AlbinismJ) Reticular layer

Question 5

Although the ducts of the eccrine sweat glands come through the epidermis, the actual secretory portion is located in the dermis.

Accepted Answer

A) True 
 B)False

Question 6

Immunity is a function of the skin and occurs by:

Accepted Answer

A)  attacking and destroying pathogens.
B)  evaporation and radiation of pathogens.
C)  excretion of chemicals in sweat.
D)  receptors that can detect sensations.

Question 7

Which of the following is not true of the dermis?

Accepted Answer

A)  It contains a papillary layer.
B)  It contains a reticular layer.
C)  In general, the dermis is thinner on the dorsal side of the body than on the ventral side.
D)  It plays an important role in body temperature regulation.

Question 8

What increase in body temperature can be caused by anesthetics or muscle relaxants?

Accepted Answer

A)  Heat exhaustion
B)  Heat stroke
C)  Fever
D)  Malignant hyperthermia

Question 9

Many liquid medicines, such as insulin, are administered using a subcutaneous injection. Why is the subcutaneous layer an ideal site for the administration of such medication?

Accepted Answer

A)  The subcutaneous layer is rich in blood supply and nerve networks.
B)  The subcutaneous layer has a rich blood supply and loose spongy texture.
C)  The subcutaneous layer has a rich blood supply and firm texture.
D)  The subcutaneous layer has a rich supply of nerves and loose spongy texture.

Question 10

An increase in the enzyme tyrosinase will lead to the destruction of pigment and result in albinism.

Accepted Answer

A) True 
 B)False

Question 11

Goose pimples, elevation of the testes, and erection of the nipples result from the contraction of muscles in the dermis.

Accepted Answer

A) True 
 B)False

Question 12

Describe the structure of fingernails, and describe how they grow and their rate of growth.

Accepted Answer

The answer of Describe the structure of fingernails, and describe...

Question 13

The body's temperature control center is located in the hypothalamus.

Accepted Answer

A) True 
 B)False

Question 14

Sensory receptors are found in the epidermis.

Accepted Answer

A) True 
 B)False

Question 15

The main function of the dermoepidermal junction is to act as a barrier to harmful chemicals and bacteria.

Accepted Answer

A) True 
 B)False

Question 16

Fingerprints are an example of the friction ridges of the skin.

Accepted Answer

A) True 
 B)False

Question 17

Match each term with its description or definition.
-Movement of heat away from the body caused by air movement or dissipation of heated fluid particles

Accepted Answer

A)  Hair papilla
B)  Radiation
C)  Apocrine gland
D)  Lanugo
E)  ConvectionF) Germinal matrixG) Sebaceous glandH) Eccrine glandI) ConductionJ) Ceruminous gland

Question 18

Keratinocytes are sometimes called corneocytes.

Accepted Answer

A) True 
 B)False

Question 19

Apocrine and eccrine glands are the two types of sebaceous glands.

Accepted Answer

A) True 
 B)False

Question 20

The body compensates for the increase in the core body temperature caused by exercise by:

Accepted Answer

A)  decreasing the blood flow to the skin.
B)  increasing the blood flow to the core.
C)  increasing the blood flow to the skin.
D)  vasoconstriction of the blood vessels in the skin.

Exam 10: Skin

Describe the structure of fingernails, and describe how they grow and their rate of growth.

Correct AnswerverifiedShow Answer

Immunity is a function of the skin and occurs by:

Correct AnswerverifiedShow Answer

Apocrine and eccrine glands are the two types of sebaceous glands.

Correct AnswerverifiedShow Answer

Keratinocytes are sometimes called corneocytes.

Correct AnswerverifiedShow Answer

Although the ducts of the eccrine sweat glands come through the epidermis, the actual secretory portion is located in the dermis.

Correct AnswerverifiedShow Answer

Goose pimples, elevation of the testes, and erection of the nipples result from the contraction of muscles in the dermis.

Correct AnswerverifiedShow Answer

Which of the following is not true of the dermis?

Correct AnswerverifiedShow Answer

An increase in the enzyme tyrosinase will lead to the destruction of pigment and result in albinism.

Correct AnswerverifiedShow Answer

Many liquid medicines, such as insulin, are administered using a subcutaneous injection. Why is the subcutaneous layer an ideal site for the administration of such medication?

Correct AnswerverifiedShow Answer

Which cells originate in the bone marrow and are important in the immune function?

Correct AnswerverifiedShow Answer

In the skin, the dermis:

Correct AnswerverifiedShow Answer

Sensory receptors are found in the epidermis.

Correct AnswerverifiedShow Answer

Fingerprints are an example of the friction ridges of the skin.

Correct AnswerverifiedShow Answer

Match each term with its definition or description. -Also called the superficial fascia

Correct AnswerverifiedShow Answer

The main function of the dermoepidermal junction is to act as a barrier to harmful chemicals and bacteria.

Correct AnswerverifiedShow Answer

Match each term with its description or definition. -Movement of heat away from the body caused by air movement or dissipation of heated fluid particles

Correct AnswerverifiedShow Answer

The body compensates for the increase in the core body temperature caused by exercise by:

Correct AnswerverifiedShow Answer

What increase in body temperature can be caused by anesthetics or muscle relaxants?

Correct AnswerverifiedShow Answer

Normally, which percentage of the cells in the stratum basale enter mitosis each day?

Correct AnswerverifiedShow Answer

The body's temperature control center is located in the hypothalamus.

Correct AnswerverifiedShow Answer

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