SKELETAL SYSTEM
Skeletal System
All of the 1)bones and 2)tissues of the
body
The 3)adult human skeleton is
comprised of 4)206 bones
The skeleton provides 5)stability and
structure:
It assists in 6)movement
Protects 7)organs
Stores 8)minerals
Produces 9)blood cells
Skeletal System
The main 10)job of the skeleton is
to provide 11)support for our body
The skeleton is 12)strong but light
It also helps protect your
13)internal organs and fragile body
14)tissues
Skeletal System
The 15)cranium (skull)
protects your brain and
16)eyes
The 17)ribs protect your
heart and 18)lungs
The 19)vertebrae (spine,
backbones) protect your
spinal cord
Skeletal System
Bones provide the
20)structure for muscles
to 21)attach so that our
bodies are able to
22)move
Tendons are tough
23)inelastic bands that
hold muscle to 24)bone
Skeletal System
A bone has an 25)outer layer of 26)hard
bone, which is very strong, 27)dense and
tough
Inside this is a layer of 28)spongy bone,
which is like 29)honeycomb, lighter and
slightly 30)flexible
In the middle is 31)jelly-like bone marrow,
where new 32)cells are constantly being
produced for the 33)blood
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System
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School House Rocks-Not
so dry bones
Circulatory System
This system is 34)responsible for
transporting materials
throughout the entire 35)body.
It transports nutrients, 36)water,
and oxygen to billions of body
37)cells
It also carries away 38)waste
such as carbon dioxide that body
39)cells produce
Circulatory System
The circulatory System is
divided into 40)three major
parts:
41)Heart
42)Blood
43)Blood Vessels
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Circulatory System-Heart
The heart 44)beats about 3 BILLION
times during an average 45)lifetime
It is a 46)muscle about the size of
your 47)fist
The heart is located in the 48)center
of your chest slightly to the 49)left
It's job is to pump 50)blood and keep
the blood 51)moving throughout the
body
Circulatory System-Blood
The 52)blood is an amazing substance
that is constantly 53)flowing through the
body.
Blood travels through 54)thousands of
miles of blood 55)vessels
A young person has about a 56)gallon of
blood.
An adult has about 57) 5 quarts
Circulatory System-Red Blood Cells
58)Red blood cells are
responsible for carrying:
◦59)Oxygen
◦60)Carbon dioxide
These cells 61)pick up
oxygen in the 62)lungs and
transport it to all the body
cells
Circulatory System-Red Blood Cells
After delivering the 63)oxygen to
the cells it gathers up the carbon
dioxide
It then 64)transports it back to the
65)lungs
Its then 66)removed from the body
when we 67)exhale
There are about 68)5 million Red
Blood Cells in 69) ONE drop of
blood.
Circulatory System-White Blood Cells
These cells help the body fight off 70)germs
White Blood Cells 71)attack and destroy
germs when they 72)enter the body
When you have an 73)infection your body
will produce more 74)White Blood Cells to
help fight it
75)Antibiotic can help our White Blood Cells
fight a 76)large scale infection
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Circulatory System-Platelets
These are blood cells that help 77)stop
bleeding.
When we 78)cut ourselves we have
broken a blood 79)vessel and the blood
leaks out
In order to 80)plug up the holes where
the blood is leaking from the
81)platelets start to stick to the
82)opening of the damaged 83)blood
vessels
Circulatory System-Platelets
As the 84)platelets stick
to the opening of the
85)damaged vessel they
attract 86)more platelets
When the platelet 87)plug
is completely formed the
wound stops 88)bleeding
Circulatory System-Plasma
Plasma is the 89)liquid part of
the 90)blood
Approximately 91)half of your
blood is made of 92)plasma
The plasma 93)carries the blood
cells and other components
throughout the 94)body
Plasma is made in the 95)liver
Circulatory System-The Blood Vessels
The Blood Vessels consists
of:
96)Arteries
97)Capillaries
98)Veins
.
Circulatory System-Blood Vessels
99)Arteries are blood
vessels that carry oxygen
rich blood 100)AWAY from
the heart.
Capillaries are 101)tiny
blood vessels as thin or
thinner than the hairs on
your 102)head
Capillaries connect
103)arteries to veins
Circulatory System-Blood Vessels
Food substances(nutrients),
oxygen and 105)wastes
pass in and out of your
blood through the
106)capillary walls
107)Veins carry blood back
toward your 108)heart
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Vessels
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