Skin plays several important roles for
our bodies.
regulate body
1. Skin helps to ________
temperature.
protects inner tissue.
2. Skin ________
D
3. Skin produces vitamin ___.
pain and touch.
4. Skin senses _____
5. Skin helps get rid of _______
waste
products.
Skin has two main layers:
The __________
epidermis and the _________.
dermis
5 distinct
The epidermis has ___
layers. The deepest layer is where
made
the new cells are _____.
The top
dead skin.
layer is composed of _____
These cells are continually being
shed.
Cross section of the epidermis
Cross section of the epidermis
Color the epidermis tan and label.
The pigment that determines skin
melanin The
and hair color is ________.
pigment is found in a single layer
of epidermal cells. The cells that
produce melanin are the
___________.
melanocytes
Color the melanocyte black and label.
The layer of skin just beneath
dermis
the epidermis is the _______.
The dermis contains blood
vessels, nerves, hair follicles,
sweat glands, and sebaceous
glands.
Color the dermis pink and label.
sebaceous glands are a
The _____________
small, sack-shaped gland that
oily (fatty) liquids
release _____
onto the hair follicle (the oil
softens the skin). They are
usually located beside a
hair follicle
_________.
Color the sebaceous glands red and label.
Sweat glands are a tubeshaped gland in the dermis
sweat Sweat
that produce _______.
is a liquid that includes small
ammonia
amounts of _________,
electrolytes
______,
urea and ___________.
Sweat does more than just
remove waste. It also helps
keep the body from
overheating The body can
____________.
get rid of extra heat through
____________.
evaporation
Color the sweat gland green and label.
The ____________
hair follicle is a tubeshaped sheath that surrounds
the part of the hair that is
under the skin. The hair is
nourished by the follicle at its
base. This is also where the
hair grows.
Color the hair follicle blue and label.
The ___________
hair shaft is the part of
the hair that is above the skin.
Color the hair and hair shaft gray and label.
pacinian corpuscle are
The ________________
nerve receptors that respond
to pressure and vibration; they
are oval capsules of sensory
nerve fibers located in the
subcutaneous fatty tissue.
Color the pacinian corpuscle purple and label.
The hair _____________
erector muscle is a
muscle that is connected to
each hair follicle and the skin.
It contracts in response to cold
and fear resulting in an erect
goosebump on
hair and a “__________”
the skin.
Color the erector muscle orange and label.
The ____________
blood vessels are tubes
that carry blood. Arteries bring
from the
oxygenated blood ______
heart and lungs. Veins return
oxygen depleted blood back to
the heart and lungs.
Color the blood vessel red and label.
The
___________
subcutaneous
tissue
_____ is the
fatty tissue
located
under the
dermis.
Color the subcutaneous tissue brown and label.
Review:
Guess the following
parts of the skin.
RESOURCES
http://images.google.com/imgres?imgurl=http://www.ratbehavior.org/images/Epidermis.jpg&imgrefurl=
http://www.ratbehavior.org/CoatTypes.htm&usg=__VkvUF9O4ifm6Sy_BYqkJ73Qfixc=&h=372&w=516&sz
=60&hl=en&start=5&itbs=1&tbnid=KD3jKdWqfbpiBM:&tbnh=94&tbnw=131&prev=/images%3Fq%3Depid
ermis%26hl%3Den%26sa%3DG%26gbv%3D2%26tbs%3Disch:1
http://z.about.com/d/dermatology/1/0/e/4/Epidermis_Full_lucid.jpg
http://www.riversideonline.com/source/images/image_popup/sn7_skinlayers.jpg
http://www.clearskinacne.com/wp-content/uploads/skin-epidermis-dermis-hair.jpg
http://www.pgbeautygroomingscience.com/assets/images/wosc/Chapter%201/Special%20Ski
n%202.jpg
http://missinglink.ucsf.edu/lm/IDS_101_histo_resource/images/172-1xHair_follicle_labelled.jpg
http://www.riversideonline.com/source/images/image_popup/sn7_hairfollicle.jpg
http://images.google.com/imgres?imgurl=http://www.immediart.com/catalog/images/big_images/SPL_E_P720213Hair_follicles,_SEMSPL.jpg&imgrefurl=http://www.immediart.com/catalog/product_info.php%3Fproducts_id%3D288&u
sg=__OGcnxzsTcBkLTvtQZLdccjXV40=&h=301&w=350&sz=69&hl=en&start=6&itbs=1&tbnid=BZwQCNRnzu8OHM:&tbnh=
103&tbnw=120&prev=/images%3Fq%3Dhair%2Bfollicles%26hl%3Den%26gbv%3D2%26tbs%3Disch:1
http://cas.bellarmine.edu/tietjen/Laboratories/Bio%20Pix%204%20U/Image102.gif
http://www.supertightstuff.com/wp-content/uploads/2009/02/goosebumps.jpg
http://www.dmk-uk.com/images/treatments/skin-diagram-acne.gif
http://myhealth.ucsd.edu/library/healthguide/enus/images/media/medical/hw/h9991258.jpg
http://www.lib.uiowa.edu/hardin/mD/pictures22/dermnet/21_basal_cell_carcinoma_cancer
_imiquimod0822057.jpg
http://science.nationalgeographic.com/staticfiles/NGS/Shared/StaticFiles/Science/Images/Co
ntent/epidermis-sb3849-sw.jpg
http://www.enchantedlearning.com/subjects/anatomy/skin/