Chapter 6 Test Questions

Question 1

The _____ separates the epidermis from the dermis.

Answer 1

Basement Membrane

Question 2

The youngest cells would be found in the stratum _____.

Answer 2

Basale

Question 3

Cells that surround melanocytes may contain more melanin that the melanocytes because of the process of _____.

Answer 3

Cytocrine Secretion

Question 4

The _____ structures are associated with detecting deep pressure within the skin.

Answer 4

Pacinian Corpuscles

Question 5

The main tissue in the dermis is _____.

Answer 5

Irregular dense connective tissue

Question 6

The part of the hair from the surface into the dermis is the _____.

Answer 6

Root

Question 7

The darkness of hair is due mainly to _____.

Answer 7

Melanin Concentration

Question 8

The following belong together except which one?
A) acne vulgaris
B) alopecia
C) comedones
D) pustules

Answer 8

Alopecia (loss of hair)

Question 9

Modified sweat glands, called _____ glands, secrete wax in the ear canal.

Answer 9

Ceruminous

Question 10

Choose the response that the body employs to raise body temperature only when the others listed have failed.
A) constricted skin blood vessels
B) sweat glands inactivated
C) slight skeletal muscle contraction
D) full body shivering

Answer 10

Full Body Shivering

Question 11

A(n) _____ is the transplanting of one’s own skin from an unburned region of the body to a burned area.

Answer 11

Autograft (auto = self)

Question 12

The strength of the dermis would mainly be due to _____.

Answer 12

The presence of collagen fibers

Question 13

Where is the greatest amount of keratin found?

Answer 13

Stratum Corneum

Question 14

The stratum basale is also called the stratum _____.

Answer 14

Germinativum (where something germinates)

Question 15

Calluses are thickened areas that are formed in response to a/an _____.

Answer 15

Increase in friction or pressure

Question 16

The pigment producing melanocytes are found in the _____ layer.

Answer 16

Basale

Question 17

What is the major factor that protects skin from the damaging effects of sunlight?

Answer 17

The presence of melanin

Question 18

Skin cancer most likely arises from which type cells?

Answer 18

Epithelial cells

Question 19

Most of the sensory fibers and structures are located in the _____ region.

Answer 19

Dermis

Question 20

Tactile corpuscles respond to a stimulus of _____.

Answer 20

Light Touch

Question 21

The subcutaneous layer can also be referred to as the _____.

Answer 21

Hypodermis

Question 22

The presence of _____ is an indication of being in the hypodermis.

Answer 22

Adipose Tissue

Question 23

What is the main factor in preserving body heat?

Answer 23

The presence of adipose

Question 24

A group of cells that surrounds the developing hair is called the _____.

Answer 24

Follicle

Question 25

The color of red hair is due to _____.

Answer 25

Trichosiderin

Question 26

Goose bumps in the skin are caused by contraction of the _____ in response to cold or emotions.

Answer 26

Arrector Pili Muscles

Question 27

``` The following relate to sebaceous glands except which one? A) produce sebum B) are associated with hair follicles C) provide waterproofing D) use merocrine methods ```

Answer 27

Use Merocrine Methods (they use holocrine)

Question 28

Hair and fingernails are derived from the _____ cells.

Answer 28

Epidermal

Question 29

The most active growing region of the nails is the _____.

Answer 29

Lunula

Question 30

Sweat glands can also be called _____ glands.

Answer 30

Sudoriferous

Question 31

What actually controls and maintains body temperature?

Answer 31

The Hypothalmus

Question 32

The most easily regulated loss of heat through the skin is by _____.

Answer 32

Evaporation (sweating)

Question 33

The greatest source of body heat is through _____.

Answer 33

Contraction of skeletal muscle

Question 34

The pigment _____ found in vegetables can impart a yellow or orange color to the skin.

Answer 34

Carotene (carrots)

Question 35

A _____ is a procedure that uses skin from a decreased person to treat a burned area.

Answer 35

Homograft (cadaver)

Question 36

The functions of the skin include all of these except _____. A) taking in nutrients B) preventing the entry of microorganisms C) retarding water loss D) regulating body temperature

Answer 36

Taking in nutrients

Question 37

The protective dead layer of cells of the outer epidermis is called the _____.

Answer 37

Stratum Corneum

Question 38

Melanocytes lie within the _____ of the skin.

Answer 38

Stratum Basale and Upper Dermis

Question 39

Which of these phrases does not characterize the dermis? A) conical dermal papillae B) thinner in areas receiving greater friction and use C) loss of elasticity with age and sun exposure D) muscle and nerve fibers

Answer 39

Thinner in areas receiving greater friction and use

Question 40

Adipose tissue is most abundant in the _____ layer under the skin.

Answer 40

Subcutaneous

Question 41

Hairs arise from which layer of the skin?

Answer 41

Stratum Basale of the Epidermis

Question 42

Within nails, the most rapidly dividing cells can be found in the _____.

Answer 42

Lunula

Question 43

``` Heat loss occurs from the body by each of these methods except _____. A) evaporation B) convection C) cellular respiration D) radiation ```

Answer 43

Cellular Respiration

Question 44

What is one important function for melanin?

Answer 44

Absorb harmful radiation

Question 45

The yellowish color of some person's skin is due to _____.

Answer 45

Carotene

Question 46

The epidermis ridges or fingerprints are probably caused by the _____.

Answer 46

Dermal Papillae

Question 47

The part of the hair below the surface of the skin is called the _____.

Answer 47

Root

Question 48

Dark-skinned persons have higher probability of developing melanomas because they have more melanocytes. T/F?

Answer 48

False (everyone has relatively the same amount of melanocytes)

Question 49

Persons who remain indoors frequently may have a higher risk of developing a malignant melanoma than those who are highly exposed to sunlight because of their work or other reasons. T/F?

Answer 49

True

Question 50

Transdermal medications are delivered by inserting a hypodermic needle into the subcutaneous region. T/F?

Answer 50

False

Question 51

The papillary layer of the dermis partially explains the presence of fingerprints in the epidermis. T/F?

Answer 51

True

Question 52

Hair is actually a structure comprised mainly of keratin. T/F?

Answer 52

True

Question 53

Excessive hair growth on regions of the body is alopecia. T/F?

Answer 53

False (loss of hair)

Question 54

Albinism is a condition resulting from the genetic inability to produce melanin throughout the body. T/F?

Answer 54

True

Question 55

Sebaceous glands are always associated with each hair follicle. T/F?

Answer 55

False

Question 56

The nail plate is the part of the fingernail which lies on top of the nail bed. T/F?

Answer 56

True

Question 57

The eccrine sweat glands are located in the axillary areas and respond to emotional upsets. T/F?

Answer 57

False (axillary has apocrine)

Question 58

As one ages, the ability to sweat increases as evidenced by increased moisture on the skin of the elderly. T/F?

Answer 58

False (it decreases)

Question 59

The elimination of sweat can have an excretory as well as temperature regulating function T/F?

Answer 59

True

Question 60

The application of an ice pack is an example of temperature control by means of convection. T/F?

Answer 60

False (its by conducting)

Question 61

In order to conserve heat, blood vessels in the skin constrict. T/F?

Answer 61

True

Question 62

Heat exhaustion occurs when the body undergoes excessive sweating on hot, humid days. T/F?

Answer 62

False

Question 63

Regardless of race, all persons, except albinos, have the same relative numbers of melanocytes. T/F?

Answer 63

True

Question 64

Antipyretic drugs are used to treat pyrexia, which is an abnormal drop in body temperature. T/F?

Answer 64

False (pyrexia = elevated body temp)

Question 65

The white blood cells secrete interleukins, which are known to block the causes of fevers. T/F?

Answer 65

False (it increases, not blocks)

Question 66

The skin is one of the more versatile organs of the body. T/F?

Answer 66

True

Question 67

Epidermal cells usually grow and divide from the upper layers of the skin and migrate towards the dermis. T/F?

Answer 67

False

Question 68

The epidermis contains a greater variety of cell types in comparison to the dermis. T/F?

Answer 68

False

Question 69

The dermis has a rich blood supply while the epidermis is totally devoid of blood vessels. T/F?

Answer 69

True

Question 70

There are usually no blood vessels in the epidermis. T/F?

Answer 70

True

Question 71

The cells in the epidermis are only comprised of squamous epithelial cells.

Answer 71

False

Question 72

The subcutaneous region has adipose cells that help insulate the body from heat as well as cold. T/F?

Answer 72

True