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Them Bones or….. The Human Skeleton
Main Parts of Human Skeleton
Location of main bones
Functions of skeleton Support Movement Protection
Can you remember? What are those three functions? Support Protection Movement Hold us upright Ribs protect the lungs heart etc Anchor for the muscles
Getting about…. Movement
Bones and muscles of the arm biceps radius humerus ulna
How would YOU raise the arm? biceps radius humerus ulna
Muscles work in pairs (antagonistic pairs) bone pulled upward triceps relaxes
How would you lower the arm? biceps triceps ulna radius humerus
They are called an antagonistic pairs bone pulled downward biceps relaxes
Watch the muscles….
They only contract
They can not push
They only pull
That’s why they work in pairs
They are called an antagonistic pairs
A Synovial Joint Bone Ligaments hold the bone together Cartilage protects end of bone Synovial fluid stops wear Capsule Membrane
Connective Tissue Tendon Muscle to bone Ligament bone connected to bone Cartilage protects end of bone
A Joint is where the bones are allowed to move about each other, this is called a hinge
Bone Marrow Red blood cells are made in the marrow or inside of the bones
Can you remember? How many functions does the skeleton have? 3
Can you remember? What are those three functions? Support, Protection and Movement Tendon, Cartilage and ligament Joints types – Ball and socket, hinge, pivot and fused
H/w P67 Q 1,4,5,6.
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Hover over the diagram for information on that part Functions of the Skeleton Please start this in slide show mode for the full interactivity.
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Skeletal System Functions: Supports the body; Protects organs (ribs, sternum, skull); Place for muscles to attach; Stores Ca; Makes blood (hematopoiesis)
Frolich, Human Anatomy, Mechanics of Movement HOW MOVEMENT HAPPENS: Muscles Pull on Tendons to Move Bones at Connections called Joints or Articulations.
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