How The Body Moves Flashcards
What are tendons?
The extension of the muscle that connects the bone to a joint: very strong, not flexible: provide anchor for movement.
Give examples on the joints:
Fixed: skull
Hinge: elbow
Ball + socket: shoulder and hip.
What is a ligament?
They hold joints in position, stabilise, smaller and weaker but more elastic.
What is the articulate cartilage?
Smooth, hard and shiny between the bone and the synovial membrane.
What does the articulate cartilage and synovial fluid do?
Reduces friction, allows smooth movement.
What do ligaments in a hinge point do?
Small rands of motion on one plane.
What do ligaments in a ball and socket do?
Provide large range of motion on a multiplane.
What happens to joints over time?
Cartilage thins and can crumble, synovial fluids become move viscous and reduces in volume, friction increases movement becomes less smooth and pain occurs.
What do muscles work in?
They work in antagonistic pairs: one contracts, the other relaxes.
