PE
hinge:
elbow knee
Flexion
is a movement which bends, thereby decreasing the angle at the joint between the bones
Extension
is a movement which straightens, thereby increasing the angle at the joint between the bones.
Abduction
is a sideways movement of a bone/ limb away from the centre line of the body.
Adduction
is a sideways movement towards the centre line of the body.
example of synovial joint
knee joint
link bones together and limit the range of movement of a joint
ligaments
Rotation
n is a turning movement around an imaginary line or central axis
pivot:
neck upper forearm
fixed:
skull
example of fix joint
skull bones
example of slightly moveable joints
spine
cartilaginous:
spine, between ribs
How many types of freely moveable joints are there?
6 types
what are joints
A joint is the area where two or more bones meet.
What are fixed joints? What is their other name?
Fixed joints are joints where there is no movement between the bones. Fixed joints are also called immovable joints or fibrous joints
What are freely moveable joints? What is their other name?
Freely moveable joints allow a wide range of movements. They are also called synovial joints.
names of the synovial joints
Hinge joint Saddle joint Ball and socket joint gliding joint pivot joint condyloid
What are slightly moveable joints? What is their other name?
Slightly movable joints allow a slight amount of movement. They are also called cartilaginous joints
protects bones and prevents them from wearing each other down.
cartilage
Ball and socket:
hips and shoulder
Circumduction
is a movement where the end of the bone makes a circle.
condyloid:
wrist