Skeletal System 3 Flashcards
(21 cards)
what are joints
any points where two or more bones meet
what are articulating bones
the bones that meet at a joint
what are the eight joint movements
flexion, extension, adduction, abduction, rotation, circumduction, plantar flexion, dorsiflexion
what are the articulating bones at the hip joint
the pelvis and the femur
what are the articulating bones at the knee joint
the femur and tibia
what are the articulating bones at the shoulder joint
the humerus and scapula
what are the articulating bones at the ankle joint
the tibia, fibula and talus
what are the articulating bones at the elbow joint
the humerus, radius and ulna
what is the definition of flexion
closing a joint such as the elbow when preparing for a basketball throw
what is the definition of extension
opening a joint such as kicking a football
what is the definition of adduction
the movement of a limb towards the midline of the body such as swinging a golf club
what is the definition of abduction
the movement of a limb away from the midline of the body such as taking back a tennis racket before swinging it
what is the definition of rotation
the clockwise or anticlockwise movement of a limb such as the shoulder movement during a topspin forehand in tennis
what is the definition of circumduction
the movement of a limb in a circular motion such as bowling a cricket ball overarm
what is the definition of plantar flexion
extension at the ankle such as a ballet pointe
what is the definition of dorsiflexion
flexion at the ankle such as raising the toes to take a step upwards when walking
what movements occur at a ball and socket joint
flexion, extension, adduction, abduction, rotation, circumduction
what movements occur at a hinge joint
flexion and extension
what are examples of ball and socket joints
the shoulder and hip
what are examples of hinge joints
the knee, ankle and elbow
what movements occur when doing a press-up
you use flexion at the elbow to bend your arms during the downward phase and then you extend your arm at the elbow to straighten your arm during the upwards phase
