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