Movement analysis

Types of synovial joint

Hinge, Ball + Socket, Pivot (+ Candyfloid)

Movement at the shoulder

Flexion = Arm goes in from of the body

Extension = Arm goes behind the body

Horizontal abduction = Arm moves away from the body, but stays horizontal

Flexion

Angle at the joint decreases

Extension

Angle at the joint increases

Abduction

Joint moves away from the midline of the body

Adduction

Movement of a limb towards the midline of the body

Dorsiflexion

Movement of the foot upwards and the angle at the ankle decreases

Plantar flexion

Foot moves downwards and the angle at the ankle increases

Rotation

A circular motion towards or away from the midline of the body

Circumduction

A combination of flexion, extension, abduction and adduction

Functions of the skeleton

Mineral storage/Protection/Allow movement/RBC production/Joints + muscles connecting/Support

Roles of the muscles

Allowing movement through contraction/Respiration/Heat production/Constricting blood vessels/Maintaining posture