Transcript Organ Systems Working Together

Organ Systems Working
Together
Go Team Cells!
• In order to keep your body healthy, your
organ systems must work together.
• Organ systems can be organized into two
main groups:
– Supplying Nutrients and Removing Waste
– Regulating the Body
Supplying Nutrients and
Removing Waste
• Organ systems involved in supplying
nutrients and removing waste are:
– Respiratory system: Lungs, Windpipe, Blood
vessels
– Digestive System: Esophagus, Stomach,
Intestines, Liver
– Circulatory System: Heart, Arteries, Veins,
Capillaries
– Excretory System: Kidneys, Bladder, Ureters,
Urethra, Liver
Regulating the Body
• Organ systems involved in regulating
the body are:
– Endocrine System: Hormones (chemical
messengers)
– Nervous System: Brain, Nerves,
Muscles
Think about this…
• You’re out for a stroll, walking
happily along, then suddenly… a
Giant Tiger jumps into your path!
• What do you do?
• Or more important, what does your
body do?
Reaction
• First your eyes, and maybe even your
ears and nose, detects the Tiger
and sends an electrical message to
your brain through the nervous
system.
• You realize the Tiger is dangerous and
decide to climb a tree.
• Nerves carry electrical signals from your
brain to your muscle system.
• This signal causes the muscles to
contract and you begin to move
(hopefully faster than the Tiger!)
• Other nerves carry messages from your brain to
your endocrine system.
• Your endocrine glands react by pumping
chemical messengers into your blood.
• When these messengers reach your heart
(circulatory system) and your lungs (respiratory
system), your heart starts beating faster and you
take in more oxygen.
• With increased oxygen and blood
flow your muscles suddenly have
more nutrients and you can climb
the tree faster.
• Aren’t you glad all of systems work
together?
Answer these:
1.
Explain hoe nerves and muscles work together.
2.
Explan why organ systems that regulate other body
systems are important.
3.
How would the health of an organism be affected if
disease damaged an organ that:
a)
b)
c)
d)
4.
Delivered nutrients?
Removed Wastes?
Informed about environmental change?
Controlled other organ systems?
How does the statement “all for one and one for all”
apply to large, multicelled organisms?