Joint Actions Flashcards
(17 cards)
Adduction
movement away from the midline of the body
(eg raising arm up)
Abduction
movement towards the midline of the body
(eg putting arm by side)
circumduction
combination of flexion, extension, abduction and adduction
(eg spinning your hand in a cone shape)
extension
movement that results in an increase in the angle of the joint
( eg straightening the elbow from a bent position is extension)
flexion
involves movement that results in a decrease in the angle of the joint
( for example pulling up when lifting a dumbbell)
rotation
when a body part makes a turning movement while the rest of the body remains still. eg can be turning your head while your body remains still.
pronation
the movement that turns the palm towards the body
supination
the movement that turns the palm away from the body (opposite of pronation)
inversion
the movement where the sole of the foot is angled toward the midline of the body. this movement occurs in the frontal plane
dorsiflexion
occurs at the ankle joint when the front of the foot is lifted towards the shin. movement occurs in the sagittal plane an example can be pointing your toes up
eversion
eversion is the movement where the sole of the foot is turned away from the midline of the body. this movement occurs in the frontal plane
plantar flexion
occurs at the ankle joint where the heel is lifted from the ground and/or when the toes are pointed downwards. this movement occurs in the sagittal plane
what are the three types of joints
- fixed or fibrous (immovable)
- cartilaginous (slightly moveable)
- synovial (freely moveable)
examples of fixed or fibrous joints?
skull,pelvis,etc
examples of cartilaginous joints
ribs attaching to sternum and lumbar vertebrae
examples of synovial joints
hip and knee joints, cervical and thoriac vertebrae
what are the 6 types of synovial joints
1 pivot
2 gliding
3 ball and socket
4 hinge
5 saddle
6 condyloid
