Integumentary System
People who
come from
equatorial
regions
generally have
darker skin
while people
who come from
polar regions
generally have
lighter skin.
Explainwhy?
why.
Explain
Challenge ?
Connection
Item
Explain how skin is like each item (Hint – think
about the job of each item and then how skin performs a similar job.)
Tupperware
Air
conditioner
Filter
Key board
VocabularyDescribe structure & Function
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•
•
•
•
Dermis
Epidermis
Hair follicle
Melanin
Sweat gland
Resources
• Holt Life Science pages 534-537
• Guided Notes
• Bill Nye Skin Video and Questions
Objective
Notes
List & Describe
the major
functions of the
integumentary
system
•
•
•
•
ID and describe
the functions of
the major parts of
skin (Draw diagram Pg. 535
•
Epidermis-
•
Dermis-
•
Blood vessels-
•
Nerves-
•
Hair follicles-
•
Oil glands-
•
Sweat glands-
below to identify parts)
Objective
Notes
List & Describe
the major
functions of the
integumentary
system
•
•
•
ID and describe
the functions of
the major parts of
skin (Draw diagram Pg. 535
•
below to identify parts)
•
Protection – keeps moisture in and dirt out
Sense of touch – lets you feel the world
Temperature control – warmth & cooling
(sweating)
Waste removal – waste from blood stream gets
excreted through sweat
•
Epidermis- top layer of skin, very thin; top most part is dead skin
which helps make skin tough
Dermis-under the dermis, mostly connective tissue, house the
nerves, blood vessels, glands & follicles
Blood vessels-transport substances and regulate temperature
•
Nerves-carry messages to and from the brain
•
Hair follicles- produce hair for protection and warmth
•
Oil glands- keeps hair flexible and skin waterproof
•
Sweat glands- regulate heat and release wastes
•
Challenge ?
• Circle all of the things that are true of skin
– Skin is not an organ
– Skin can release wastes from the body
– Skin can heal itself
– Skin can act like a sunscreen
– Skin keeps out germs
– Hair and nails are not part of skin
– Skin has one main layer