Chapter5
This activity contains 7 questions.
Label the following components in the diagram of the integumentary system.
For each item below, use the pull-down menu to
select the letter that labels the correct part of the
image.
1.1 Reticular
layer
[hint]
1.2 Sweat
gland
1.3
Epidermis
1.4
Sebaceous
gland
Label the following components in the diagram of the integumentary system.
For each item below, use the pull-down menu to
select the letter that labels the correct part of the
image.
2.1 Papillary layer
[hint]
2.2 Subcutaneous
layer (hypodermis)
2.3 Hair follicle
Label the following components in the diagram of the integumentary system.
For each item below, use the pull-down menu to
select the letter that labels the correct part of the
image.
3.1 Lamellated
corpuscle
3.2 Tactile
corpuscle
3.3 Dermis
Label the layers of the epidermis.
For each item below, use the pull-down menu to
select the letter that labels the correct part of the
image.
4.1 Dermis
4.2 Stratum
granulosum
4.3 Stratum
germinativum
4.4 Stratum
corneum
Label the layers of the epidermis.
For each item below, use the pull-down menu to
select the letter that labels the correct part of the
image.
5.1 Stratum
lucidum
5.2 Stratum
spinosum
5.3 Basal
lamina
Label the structures associated with hair anatomy.
For each item below, use the pull-down menu to
select the letter that labels the correct part of the
image.
6.1 Hair bulb
6.2 Hair shaft
6.3
Connective
tissue root
sheath
6.4 Arrector
pili muscle
6.5
Sebaceous
gland
6.6 Hair root
Label the structures associated with nail anatomy.
For each item below, use the pull-down menu to
select the letter that labels the correct part of the
image.
7.1
hyponychium
7.2
eponychium
7.3 Nail body
7.4 Nail root
7.5 Lunula
This activity contains 6 questions.
Place the following layers of the epidermis into the proper order, starting from the
innermost layer (1) to the outermost layer (5).
Using the pull-down menus, match each item in the left column to the corresponding item in
the right column.
1.1 1
stratum germinativum
1.2 2
stratum lucidum
1.3 3
stratum corneum
stratum granulosum
1.4 4
stratum spinosum
1.5 5
Match the condition to the proper cause:
Using the pull-down menus, match each item in the left column to the corresponding item in
the right column.
2.1 melanocyte function loss, may
be autoimmune
cyanosis
2.2 metabolic product of vitamin D3
ulcer
2.3 localized shedding of an
epithelium
jaundice
calcitriol
2.4 oxygen lack in blood to skin
causes blueness
vitiligo
2.5 bile excretion in liver fails, skin
turns yellow
Put the following layers of the hair shaft and surrounding hair follicle into the proper order,
starting at the center (1).
Using the pull-down menus, match each item in the left column to the corresponding item in
the right column.
3.1 1
medulla
3.2 2
cuticle
external root sheath
3.3 3
glassy membrane
3.4 4
internal root sheath
cortex
3.5 5
3.6 6
Put the following steps in integumentary repair in the proper order by matching them from
(1) to (5).
Using the pull-down menus, match each item in the left column to the corresponding item in
the right column.
4.1
1
4.2
2
4.3
3
epidermal cells undermine the scab and fibrin
clot disintegrates
dermal fibroblasts produce scar tissue that
elevates epidermis
scab is shed and epidermal regrowth is
complete
scab forms and clotting isolates region
4.4
4
Match the description of each accessory structure with the appropriate structure:
Using the pull-down menus, match each item in the left column to the corresponding item in
the right column.
5.1 Holocrine gland with a waxy, oily
secretion
Sebaceous
follicle
Ceruminous
glands
5.2 Large gland that lubricates the
epidermis and is not associated with
hair follicles
Sebaceous
gland
nails
5.3 Sweat production that begins
with puberty.
Merocrine
sweat glands
Apocrine
sweat glands
5.4 Sensible perspiration
5.5 Producing modified sweat that
mixes with nearby sebaceous gland
secretions to protect the eardrum
5.6 Protection for exposed tips of
digits
Match the term with the correct definition
Using the pull-down menus, match each item in the left column to the corresponding item in
the right column.
6.1 Nail body
Thickened stratum corneum near
free edge of nail
6.2
Hyponychium
Visible portion of the nail
Epidermis beneath nail
6.3
Eponychium
Epidermal fold where nail is
produced
Stratum corneum of the nail root
that extends over the exposed nail
6.4 Nail bed
Pale crescent shape at base of nail
6.5 Nail root
6.6 Lunula
This activity contains 25 questions.
The integumentary system consists of
the hypodermis and mesodermal layers.
the dermis and subcutaneous layers.
the cutaneous membrane and associated structures.
the epidermis and deep fascia.
Which of the following is NOT a function of the integumentary system?
absorption of nutrients
protection
maintenance of body temperature
storage of nutrients
Beginning at the basement membrane and working toward the free surface, the layers of
the epidermis are
stratum basale, stratum corneum, keratohyaline, and keratinocytes.
stratum germinativum, stratum spinosum, stratum granulosum, stratum lucidum,
and stratum corneum.
keratinocytes, Merkel cells, fibroblasts, and melanocytes.
stratum corneum, stratum lucidum, stratum granulosum, and stratum
germinativum.
Ultraviolet radiation
is beneficial in small amounts.
causes melanin production to accelerate.
can cause cumulative damage, leading to premature aging.
all of the above
Vitamin D3 (cholecalciferol)
can be synthesized from food.
can be converted to calciferol.
can be absorbed from food.
all of the above
Which of the following statements about vitamin D is NOT true?
It controls the metabolic rate of the body.
Ultraviolet radiation produces it from steroids in the skin.
It controls the absorption of calcium from the diet.
It is added to most dairy products in the United States.
Which of the following is an effect of epidermalgrowth factor?
promotes the division of cells in the stratum germinativum
accelerates the production of keratin in epidermal cells
stimulates secretion by epidermal glands
all of the above
The major components of the dermis are
desmosomes and microvilli.
keratinocytes and melanocytes.
papillary layer and reticular layer.
basal cells and Merkel cells.
Which of the following sensory cells is located in the epidermis?
lamellated corpuscles
tactile corpuscles
Merkel's or tactile discs
all of the above
Nails, sweat glands, hair follicles, and sebaceous glands
originate from the dermis.
are epidermal derivatives.
grow continuously throughout life.
all of the above
What is the function of sebum?
excretes water and electrolytes
cools the skin
trap. particles in the ear
inhibits bacteria and lubricates the keratin of hair
Apocrine sweat glands
are found in the armpits, groin, and around the nipples.
produce a watery, salty secretion.
cool the surface of the skin.
are far more numerous than eccrine sweat glands.
Which of the following glands produces earwax?
merocrine (eccrine) glands
ceruminous glands
mammary glands
apocrine glands
The root hair plexus
surrounds the base of each hair.
causes hairs to stand erect.
is responsible for deep pressure sensations.
none of the above
The eponychium
extends under the nail.
is the nail cuticle.
is a pale crescent at the base of the nail.
is found at the free edge of the nail.
The body of the nail
is covered by the cuticle.
is not affected by diseases.
is beneath the hypochondrium.
consists of dead, tightly compacted cells.
The four stages in the regeneration of skin in the correct order are
clot dissolution, granulation, fibroblast activity (regeneration), and scab formation.
swelling, heat, tenderness, and pain.
bleeding, scab formation, fibroblast activity (regeneration), and scab shedding.
scab formation, degeneration, fibroblast activity (regeneration), and bleeding.
The color of skin is the result of
carotene.
dermal blood supply.
melanin.
all of the above
Melanin is
a brown-black pigment.
found in large amounts in albinos.
produced in keratinocytes.
an orange-yellow pigment found in squash.
Lines of cleavage are clinically significant because
a cut parallel to a cleavage line will remain closed.
they promote wound healing.
wounds heal more slowly if they run parallel to lines of cleavage.
a cut at right angles to a line of cleavage will remain closed.
Decubitus ulcers
are growths of excess skin tissue.
result in excess pigmentation or "birthmarks."
result from a lack of circulation.
all of the above
The protective scab that forms over an injury consists of
collagen fibers.
fibrin.
granulation tissue.
cellulite.
What forms when scar tissue continues beyond the requirements of tissue repair?
granulation tissue
stretch marks
keloid
scab
Older people are more prone to skin injuries as a result of
the number of Langerhans cells decreasing.
reduction in melanocyte activity.
the thinning of the epidermis.
all of the above
The reduction in sebum production due to aging can lead to
sunburn.
wrinkles.
dry and scaly skin.
overheating in warm environments.
This activity contains 5 questions.
Apocrine sweat glands are associated with hair follicles.
True
False
Vellus hairs are found on your head, eyebrows, and eyelashes.
True
False
The blood clot that forms at the site of an epidermal injury is called granulation tissue.
True
False
Another name for the eponychium is cuticle.
True
False
The secretions of sudoriferous glands have antibacterial action.
True
False
This activity contains 3 questions.
The integumentary system contains two components, the outer
the underlying dermis, along with several accessory structures.
The dermis is divided into an upper
layer.
and
layer and the deeper reticular
in the stratum germinativum form patterns of depressions and
elevations that are especially noticeable on the fingertips.