life science mr. petriccione. what does the skeletal system do?
TRANSCRIPT
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Life Science Mr. Petriccione
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What does the skeletal system do?
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What does the skeletal system do?• Provides, protection, support and movement
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What are the main parts?
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What are the main parts?• Bones
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Bones are hard tissue made mostly of cells, protein, and calcium.
There are over 200 in the human body!
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Connect at joints
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What structure keeps them together?
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It’s a common sports injury
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Born in Mexico Milwakee Brewers’ ace
right handed pitcher Has a career 3.57 era
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Had an amazing season in 2008
However, his season was cut short with a torn ACL
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anterior cruciate ligament
It allows the knee to have increased flexibility.
It is one of four major ligments in the knee and is the most common knee injury.
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A stretchy tissue that connects bones to other bones are called ligaments.
Ligaments allow for increased flexibility, like a rubber band.
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It’s the same tissue that makes up your ears and nose.
What is it?
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Tissue located between bones that provide support is called cartilage.
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Some bones get longer as we grow, especially at puberty.
What bones get bigger as we grow?
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Growth plates are located in the femur, which gives us our height.
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Hinge Joint
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Hinge Joint
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Elbow
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Ball and Socket Joint
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Ball and Socket Joint
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Shoulder
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Pivot Joints
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Pivot Joints
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Neck
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Saddle Joint
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Saddle Joint
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Thumb
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Gliding Joint
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Gliding Joint
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Palm
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Immovable Joint
What does immovable mean?
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These joints don’t move
Where would you have joints that don’t move?
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Skull
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If it is called an immovable joint because it doesn’t move, why call it a joint at all?
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If it is called an immovable joint because it doesn’t move, why call it a joint at all?1) It moves a little bit 2) Joints are where bones come together3) Joints protect organs, like the skull
protects the brain4) It contains cartilage, so it must be a joint
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What happens at a joint if it has no cartilage?