SKELETAL SYSTEM

Skeletal SystemAll of the 1)bones and 2)tissues of the bodyThe 3)adult human skeleton is comprised of 4)206 bonesThe skeleton provides 5)stability and structure:It assists in 6)movement Protects 7)organsStores 8)mineralsProduces 9)blood cells

Skeletal SystemThe main 10)job of the skeleton is to provide 11)support for our bodyThe skeleton is 12)strong but lightIt also helps protect your 13)internal organs and fragile body 14)tissues

Skeletal SystemThe 15)cranium (skull) protects your brain and 16)eyesThe 17)ribs protect your heart and 18)lungsThe 19)vertebrae (spine, backbones) protect your spinal cord

Skeletal SystemBones 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 SystemA bone has an 25)outer layer of 26)hard bone, which is very strong, 27)dense and toughInside this is a layer of 28)spongy bone, which is like 29)honeycomb, lighter and slightly 30)flexibleIn the middle is 31)jelly-like bone marrow, where new 32)cells are constantly being produced for the 33)blood

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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 plateletsWhen 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)Arteries97)Capillaries98)Veins

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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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