ch.1.less.5.how do body systems work together to carry out life functions [autosaved]
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How do body work together to
carry out life functions?
Chapter 1: Lesson 5:
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Function of the skeletal system
1) Protect the soft organs ex. Heart and lungs.2) Provide a framework for the body (support).
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Protect the heart and lungs
HipsSpine
Neck
Vertebrae
Shoulder
Knee
Thigh
Elbow
Foot Ankle
Shin
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What is bone? A living tissue
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Soft bone marrow inside many of the bones is where most of the blood cells are made.
What make up the bones?
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X-rays
Pictures that gives doctors a map of the body
How do we know what our bodies look like?
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Babies have 300 bones which grow and fuse together to form the 206 bone of adults.
Example:
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Clean breakWhen the bone has
broken into two bones.
A green stick fractureWhen the bone cracks
on one side only, not all the way through.
Types of bone fractures
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Muscular system
Helps animals move.
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Digestive system
A long tube where the food is broken down into nutrients an organism can use.
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Salivary glandsProduce saliva to break
down food in the mouth.
TeethGrind the food into smaller
pieces.
TongueHelps us swallow food.
EsophagusMuscular tube that contracts and expands to push partially digested
food to the stomach. StomachStrong acids help break down food
more.Liver and pancreasProduce juices to digest the food
further in the small intestine.Small intestine
Nutrients are digested from the small intestine.
Large intestineWater is re-absorbed from
undigested food.
AnusUndigested food leaves the body
through the anus.
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Removes wastes from the body.
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Kidney(Removes wastes from the
blood using lots of tiny filters)
Ureters
Bladder(Stores urine)
Urethra(Passes out urine when bladder is full)
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Provide oxygen to all the cells of the body.
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NoseWe breathe in oxygen
and breathe out carbon dioxide from it.
Trachea(passage way)
LungsGives oxygen to the blood
and takes the carbon dioxide from the bloodDiaphragm
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Includes the brain, the spinal cord, nerves and sense organs.
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Brain1) Controls body organs.2) Coordinates muscle movement.3) Interprets information from sense organs.
Spinal cordPasses signals sent to and from the brain.
Nerves