Soc13: Joints and Movement Flashcards
What is flexion
Bending movement that decreases the angle between body parts
Where can flexion happen
Shoulder, hip, elbow
What is an example of flexation
Arm bending when doing a bicep curl
What is extension
Straightening movement that increases the angle between body parts
Where can extension happen
Shoulder, hip, elbow
What is an example of extension
A swimmer swings the arm backwards in preparation for a racing dive
What is adduction
Movement that pulls towards the midline of the body
Where can any type of movement happen
Shoulder, hip
An example of adduction
A golfer swings the club down towards the ball
What is abduction
Movement that pulls away from the midline of the body
An example of abduction
A gymnast moves their arms out sideways at the shoulder when performing ‘the crucifix’ on the rings
What is rotation
Movement around a single axis pivot point
An example of rotation
A tennis player serve
Circumduction
Moving in a circular or conical shape
An example of circumduction
A cricketer bowls a ball
What is Dorsi-flexion
Bending or flexing the toes up, closer to the shin
Where is Dorsi- flextion and Plantar flexion located
Ankle
An example of dorsi-flexion
A sprinter positions their feet in the starting blocks
What is plantar-flexion
Extending or pointing the toes down, away from the shin
An example of plantar-flexion
A floor gymnast points their toes
Pivot joint with an example
Allow bones to rotate. Neck
Hinge joints with an example
Allows only backwards and forwards movement. The knee
Ball and Socket joints with an example
The rounded head of a long bone fits into a cup shaped hole. Hip
Condyloid joints with an example
Similar to ball and socket however the ball rests against the end of a bone rather than inside a socket. Allows circular motion. Your wrist
What is a tendon
non-elastic fibres that attach muscle to bone, and help to move them. Tendons let you apply power and movemet
What is a ligament
Elastic fibres that join one bone to another, usually to hold things together and keep them stable
