What you need to know about the Skeletal System, Name - Radius. A bone in the forearm which connects to the wrist on the same side as the thumb., Name - Ulna. A bone in the forearm which connects to the wrist on the same side as the little finger., Name - Humerus. A bone in the upper arm, the lower bone end makes up part of the elbow., Name - Femur. A large bone which is found in the upper legs and connects to the pelvis to form the hip joint., Name - Tibia. The larger of the bones found in the lower leg which is found on the inside front of the leg., Name - Fibula. The smaller of the bones found in the lower leg which is found on the outside back of the leg., Type of joint, Type of joint - Ball and socket joint. Can be found in the shoulder and hip and allow movement in almost every direction. It is made up of a round end of one bone that fits into a small, cup-like area of another bone., Type of joint - Hinge joint. Can be found in the elbow and knee. They are like the hinges on a door and allow you to move the elbow and knee in only one direction. They allow flexion and extension., Type of joint - Pivot joint. Can be found in the neck, between the top two vertebrae. It allows only rotational movement, such as moving your head from side to side as if you were saying ‘no’., Type of movement - Flexion. Bending of a joint when the angle decreases. Extension. Straightening of a joint when the angle increases. Both occur at hinge joints., Type of movement - Abduction. Where a limb moves away from the body. Adduction. Where a limb moves towards the body. Both occur at ball and socket joints., Type of movement - Circumduction. A circular motion involving flexion, extension, abduction and adduction. Rotation. A twisting movement at a joint., Function, Function, Function, Function, Function, Function,

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