The Skeloton Flashcards
Why do we need a skeleton?
The skeleton supports our body and keeps our vital organs safe.
What is a bone?
A living tissue with a blood supply- we have 206 of these in our body.
How do your bones and muscles work together?
Your bones and muscles work together to make you move.
What is in the middle of a bone?
Bone marrow. They produce red blood cells and some white blood cells.
What are bones covered with?
They are covered with a strong but smooth layer of cartilage.
How is cartilage kept slippery?
By the fluid in the joint.
How are bones held together?
With ligaments.
What is the hinge joint for?
For movement backwards and forwards.
What is the bull socket joint for?
Movement 360*
What is a joint?
Where 2 bones make contact.
What is a Tendon?
Connects muscle to bone.
The cartilage reduces…
Friction.
A muscle ______ on a bone when it contracts.
Pulls
Select 1
Muscles can…
1. Pull
2.Push
3. Both
- Pull- muscles cannot push
What is an antagonistic pair?
2 muscles working together at a joint. When one contracts, the other relaxes.
