Chapter 4
Integumentary System
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Chapter 4
Lesson 4.1
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4-2
Objectives
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Identify organs and structures of the
integumentary system.
Define and spell the word parts related to the
integumentary system
Define, pronounce and spell disease and
disorder terms related to the integumentary
system.
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4-3
Integumentary System Function
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The skin forms a protective covering that
when unbroken prevents entry of bacteria
and other invading organisms. The skin also
protects the body from water loss and from
damaging effects of ultraviolet light.
Other functions include regulation of body
temperature and synthesis of vitamin D.
The integumentary system comprises the
skin, nails, and sweat and oil glands.
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Structure of the Skin
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Major Structures of the Skin
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epidermis: outer layer of skin
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keratin: horny, or cornified, layer composed of
protein
melanin: color, or pigmentation, of skin
dermis (also called “true skin”): the inner
layer of skin
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4-6
Major Structures of the Skin (cont’d.)
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sudoriferous glands: tiny, coiled, tubular
structures that emerge through pores on
skin’s surface
sebaceous glands: secrete sebum (oil) into
the hair follicles, where the hair shafts pass
through the dermis
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4-7
Accessory Structures of the Skin
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hair: compressed, keratinized cells that arise
from hair follicles (sacs that enclose the hair
fibers)
nails: originate in the epidermis; found on the
upper surface of the ends of the fingers and
toes
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4-8
Combining Forms for the
Integumentary System
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cutane/o, derm/o, dermat/o
hidr/o
kerat/o
onych/o, ungu/o
seb/o
trich/o
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Cross Section of the Skin
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Combining Forms Commonly Used
with Integumentary System Terms
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aut/o
bi/o
coni/o
crypt/o
heter/o
myc/o
necr/o
pachy/o
rhytid/o
staphyl/o
strept/o
xer/o

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Prefixes
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epiintraparapersubtrans-
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Suffixes
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-a
-coccus
-ectomy
-ia
-itis
-malacia
-opsy
-phagia
-plasty
-rrhea
-tome

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4-13
Clicker Question
Which of the following means “eating or
swallowing”?
pachy/o
b) -phagia
c) -plasty
a)
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4-14
Disease and Disorder Terms Built
From Word Parts
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dermatitis
dermatoconiosis
dermatofibroma
hidradenitis
leiodermia
oncychocryptosis
onychomalacia
onychomycosis
onychophagia
pachyderma
paronychia
seborrhea
trichomycosis
xeroderma

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4-15
Note
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
hidradenitis
paronychia
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The -a Ending
The -a ending in the terms “pachyderma,”
“xeroderma,” “erythroderma,” “leukoderma,”
and “xanthoderma” is a noun suffix and has
no meaning
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Analyze and Define
WR /CV/ WR / S
onych/o/myc/osis
CF /

dermatoconiosis

hydradenitis

dermatitis
abnormal condition
of fungus in the nail
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4-18
Disease and Disorder Terms
Not Built From Word Parts
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abrasion
abscess
acne
actinic keratosis
albinism
basal cell carcinoma (BCC)
candidiasis
carbuncle
cellulitis
contusion
eczema
fissure
furuncle
gangrene

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4-19
Disease and Disorder Terms Not
Built From Word Parts (cont’d.)
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herpes
impetigo
Kaposi sarcoma
laceration
lesion
pediculosis
psoriasis
rosacea
scabies
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scleroderma
shingles
squamous cell carcinoma
(SqCCA)
systemic lupus erythematosus
(SLE)
tinea
urticaria
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4-20
Common Skin Disorders
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4-21
Common Skin Disorders (cont’d.)
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4-22
Common Skin Disorders (cont’d.)
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Cancers of the Skin
Squamous cell carcinoma
Melanoma
Actinic keratosis
Basal cell carcinoma
Kaposi sarcoma
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4-24
Clicker Question
Shingles is also called
tinea
b) herpes zoster
c) impetigo
a)
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4-25
Chapter 4
Lesson 4.2
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Objectives



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Define, pronounce and spell surgical terms
related to the integumentary system.
Define, pronounce and spell complementary
terms related to the integumentary system.
Interpret the meaning of abbreviations related
to the integumentary system.
Interpret, read and comprehend medical
language in simulated medical statements
and documents.
Copyright © 2009, 2006 by Mosby, Inc., an affiliate of Elsevier Inc. All rights reserved.
4-27
Surgical Terms Built from Word Parts
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biopsy
dermatoautoplasty
dermatoheteroplasty
dermatoplasty
dermatome
onychectomy
rhytidectomy
rhytidoplasty
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4-28
Surgical Terms Not
Built from Word Parts
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cauterization
cryosurgery
debridement
dermabrasion
excision
incision
incision and drainage (I&D)
laser surgery
Mohs surgery
suturing
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4-29
Complementary Terms
Built from Word Parts
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dermatologist
dermatology (derm)
epidermal
erythroderma
hypodermic
intradermal (ID)
keratogenic
leukoderma
necrosis
percutaneous
staphylococcus (staph)
(pl. staphylococci)
streptococcus (strep)
(pl. streptococci)
subcutaneous (subcut)
transdermal (TD)
ungual
xanthoderma

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4-30

streptococci
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4-31

staphylococcus
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4-32
Routes of Administration
1. Intradermal
3. Transdermal
2. Subcutaneous, hypodermic
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4-33
Complementary Terms
Not Built from Word Parts
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adipose
allergy
alopecia
bacteria
cicatrix
cyst
cytomegalovirus (CMV)
diaphoresis
ecchymosis
edema
emollient
erythema
fungus
induration

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4-34
Complementary Terms
Not Built from Word Parts (cont’d.)
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jaundice
keloid
leukoplakia
macule
nevus (pL nevi)
nodule
pallor
papule
petechia (pl. petechiae)
pressure ulcer (decub)
pruritus
purpura
pustule
ulcer
verruca
vesicle
virus
wheal

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4-35
Burn Keloid
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4-36
Stage 2 Pressure Ulcer
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4-37
Clicker Question
The term which means profuse sweating is
ecchymosis
b) emollient
c) diaphoresis
a)
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4-38
Abbreviations
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BCC
bx
CMV
decub
derm
I&D
ID
SLE
SqCCA
staph
strep
subcut
TD

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4-39
Read Medical Terms In Use
Emily visited the dermatology clinic because of
pruritus secondary to dermatitis involving her scalp,
arms, and legs. A diagnosis of psoriasis was made.
Eczema, scabies, and tinea were considered in the
differential diagnosis. An emollient cream was
prescribed. In addition the patient showed the
dermatologist the tender, discolored, thickened nall
of her right great toe. Emily learned she had
onychomycosis, for which she was given an
additional prescription for an oral antifungal drug.
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4-40