Ch. 5 Integumentary System

Question 1

A slight sunburn is an example of a _____ burn.

Answer 1

First-Degree

Question 2

Epidermis is characterized by being _______, whereas dermis is distinguished by being ______.

Answer 2

composed of stratified epithelial tissue; composed of connective tissue

Question 3

An abrasion of the skin results in which of the following?

Answer 3

portal of entry of micrrorganisnm

Question 4

A malfunction of the process of keratinization results in the condition known as

Answer 4

psoriasis

Question 5

The diagram illustrates glands of the skin. What does “C” represent?

Answer 5

Eccrine Sweat Gland

Question 6

Albinism develops due to

Answer 6

inherited mutant gene for melanin

Question 7

In which layer of the epidermis are granules of keratohyalin formed?

Answer 7

Stratum Granulosum

Question 8

The epidermis

Answer 8

Contains no blood vessels (avascular)

Question 9

Acne is caused by

Answer 9

testosterone

sebum

abnormal keratinization of follicles

Propionibacterium

*All of these are factors

Question 10

Eccrine sweat glands

Answer 10

aid in cooling the body

Question 11

Integumentary System consists of what?

Answer 11

Skin, hair, glands and nails

Question 12

What are the functions of integumentary system?

Answer 12

1. Protection- Helps protect and reduces the harmful effects of the ultraviolet light
2. Sensation- Has sensory receptors that can detect heat, cold, pressure and pain,
3. Temperature Regulation
4. Vitamin D production
5. Excretion

Question 13

List the 5 layers of epidermis

Answer 13

5. Stratum Corneum
6. Stratum Lucidum
7. Stratum Graulosum
8. Stratum Spinosum
9. Straum Basale

Question 14

What layer are they keratohyalin granules found in the 5 layers of epidermis?

Answer 14

Stratum Granulosum

Question 15

Albinism

Answer 15

Is usually a recessive genetic trait that results from inability to produce tyrosinase

Question 16

The blush tinge of skin due to a reduction of oxygen in the blood is called

Answer 16

cyanosis

Question 17

Melanin

Answer 17

Is the group of pigments primarily responsible for skin, hair, and eye color

Question 18

All the following statements concerning hair are true except one. Identify the exception.

The growth rate of all types of hair is the same

Hair growth occurs in cycles, with growth and resting stages.

In pattern baldness, those hair follicles present begin to produce vellus hair.

Some loss of hair is normal and indicates old hairs are being pushed out by new hairs.

Answer 18

*The growth rate of all types of hair is the same

Question 19

Eccrine sweat glands differ from sebaceous glands

in terms of what is secreted

in their location in the body

because sebaceous glands are associated with hair follicles, whereas sweat glands are not

all of the above

Answer 19

all of the above

Question 20

The diagram illustrate glands of the skin. What does “A” represent?

Answer 20

Sweat Pore

Question 21

If you accidentally cut your arm and see connective tissue and fat, which layer(s) was/were cut

stratum corneum

stratum basale

dermis

hypodermis

all of these layers

Answer 21

*all of these layers

Question 22

What does the structure “B” represent on the diagram?

Answer 22

Dermis

Question 23

On coming inside from the cold, students notice that their checks are red. This results form

Answer 23

dilation of the blood vessels in the dermis of the cheeks

also known as vasodilation

Question 24

By covering the whole surface skin acts as a protective barrier and plays a role in

Answer 24

Excretion

Question 25

Keratinocytes

Answer 25

are responsible for the reduction of water loss form the skin

Question 26

Another name for a bedsore

Answer 26

decubitus ulcer

Question 27

As cells are pushed from the deeper portion of the epidermis toward the surface they ( 5 layers picture)

Answer 27

Are replaced by dividing cells from below

Question 28

As cells are pushed from the deeper portion of the spiders toward the surface they ( 5 layers picture )

Answer 28

Are replaced by dividing cells from below

Question 29

Body odor results from secretions from the ____ sweat glands.

Answer 29

Apocrine

Question 30

Excessive shedding of this layer of the epidermis of the scalp is responsible for dandruff

Answer 30

Stratum Corneum

Question 31

Goose-bumps on the skin are due to the contraction of the muscle called

Answer 31

Arrector pilli muscle

Question 32

Melanin is produced only by

Answer 32

melanocytes

Question 33

In which of the following regions of the body are apocrine sweat glands most numerous?

Answer 33

Axilla and groin

Question 34

In cold weather ____ may result from reduced blood circulation through the skin.

Answer 34

Cyanosis

Question 35

Fingertips and footprints are produced by projections into the epidermis called

Answer 35

Dermal papillae

Question 36

Melanin

Answer 36

is absent in individuals known as albinos

Question 37

Keratinization

Answer 37

produces layer of cells that resists abrasion

Question 38

What does structure "C" represent on the diagram?

Answer 38

Hypodermis

Question 39

All of the following substances can contribute to the color of skin. Of these, only ___ is of dietary origin.

Answer 39

Carotene

Question 40

The diagram illustrates glands of the skin. What does "E" represent?

Answer 40

Duct of apocrine sweat gland

Question 41

The diagram illustrates glands of the skin. What does "D" represent?

Answer 41

Apocrine sweat gland

Question 42

A yellow pigment derived from plants that can impart a yellow color to the skin is

Answer 42

Carotene

Question 43

An increase in body temperature causes

Answer 43

sweating

Question 44

Exposure to ultraviolet light causes the skin to darken by stimulating the

Answer 44

activity of the enzyme tyrosinase

Question 45

A plastic surgeon would most likely make a skin incision:

Answer 45

Parallel to the cleavage lines

Question 46

Due to the contraction of smooth muscle in the walls of dermal blood vessels

Answer 46

body heat is conserved

Question 47

baldness

Answer 47

is more common in men than in women

Question 48

The figure illustrates keratinization in the epidermis. What layer of the epidermis is "A"?

Answer 48

Stratum Corneum

Question 49

A subcutaneous injection delivers medication into the

Answer 49

Hypodermis

Question 50

In which layer of the epidermis are lamellar bodies formed inside keratinocytes?

Answer 50

Stratum Spinosum

Question 51

Nail cells are produced by the

Answer 51

nail matrix

Question 52

nails

Answer 52

protect the ends of digits

Question 53

What does structure "D" represents on the diagram?

Answer 53

Arrector pilli muscle

Question 54

What does structure "D" represent on diagram?

Answer 54

Arrector pilli muscle

Question 55

What doe structure "E" represent on the diagram?

Answer 55

Hair Follicle

Question 56

What does structure "A" represent on the diagram?

Answer 56

Sebaceous Gland (Secretes oil) Example hair

Question 57

The integumentary system has many functions, one of which is

Answer 57

Detection of heat and touch