Soc 13: Movements Flashcards
Flexion
Bending movement that increasescangle between body parts
Joints that provide it- shoulder, hip, elbow
Examples in sport- someone working out in the gym bends their arm up when doing a bicep curl
Extension
Straightening movement that increases angle between body parts
Joints that provide it- shoulder, hip
Examples in sport- a swimmer swings up the arm backwards in prep for a racing dive
Adduction
Movement that pulls towards the midline of the body
Joints that provide it- shoulder, hip
Examples in sport- a golfer on the tee swings the club down towards the ball
Abduction
Movement that pulls away from the midline of the body
Joints that provide it- shoulder hip
Examples in sport- a gymnast moves their arms sideways at the shoulder when performing a move
Rotation
Movement around a single axis at a pivot point
Joints that provide it- shoulder, hip
Examples in sport- a tennis player serves
Circumduction
Moving in a circular or a conical shape
Muscles that provide it- shoulder, hip
Examples in sport- a cricketer bowls a ball
Dorsi-flexion
Bending or flexing the toes up, closer to the shin
Joints that provide it- ankle
Examples in sports- a sprinter positions their feet in the starting block
Plantar-flexion
Extending or pointing the toes down away from the shin
Joints that provide it- ankle
Examples in sport- a floor gymnast points their toes
Pivot joints
Allow bones to rotate. In a pivot joint one bone shaped like a cylinder rotates inside snother bone or ligament
Hinge joints
Allow backwards and forward motion
Knee, elbow, ankle
Ball and socket
The rounded head of a long bone fits into a cup shaped hole
Condyloid joints
Similar to ball and socket but the ball rests againgst the end of the bone allowing circular motion
Adduction amd abduction
5 functions of the skeletal system
Protection of vital organs
Muscle attachment
Joints for movement
Storing calcium and phosphurus
Red and white blood cell production
Long bones
Generate movement
Short bones
Weight bearing
