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?