A CONCEPT MAP & PRACTICE OF THE INTEGUMENTARY SYSTEM-- Fill in the blanks. Name: ___________________________________; Score: __________
Integument
❼____________
(Superficial)
FIVE TYPES OF CELLS:
Dermis—rich in small blood vessels, many
collagen and other fibers, cutaneous
glands (sweat glands, oil glands, hair
follicles), and nerve endings
❶_____________—keratinized stratified squamous
epithelium; lacks blood vessels
❾________________—
between skin and muscle
❽____________
(Deeper)
Subcutaneous layer
Also called
Consists of
Predominantly
❿__________ tissue
More areolar
tissue than dermis
Regions
Consists of
Consists of
Areolar tissue
Dense irregular
connective tissue
Upward dermal
papillae
interlock with
downward
epidermal
ridges
Striae—stretch
marks due to
torn collagen
fibers
Consists of
❷Mostly _____________
(life span @ 30 days)—
secrete keratin
Dendritic (Langerhans)
cells—immune cells; fight
microbes & pathogens
Tactile (Merkel)
cells/Meissner corpuscle—
receptors for touch
Stem cells—
undifferentiated cells give
rise to the keratinocytes.
❸________________—
produce pigment melanin
FIVE/FOUR STRATA (TOP
TO BOTTOM):
Stratum corneum—dead
keratinized cells
❹Stratum _________—
only in thick skin; pale
appearance due to a clear
protein eleidin
❺Stratum _________—
forms epidermal water
barrier
❻Stratum _________—
the thickest stratum in
most skin; desmosomes
hold cells together
Stratum basale (single
layer) -- include
keratinocytes,
melanocytes, stem cells,
and tactile cells
Consists of
is superficial to
