APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -Extension – straightening a joint. This occurs when the angle of a joint increases, for example the elbow when throwing a shot put. The take-off knee extends when a high-jumper takes off (the other knee is flexed). Ball and socket joints also allow flexion and extension.

Detailed explanation-2: -Extension-The opposite of flexion, extension is a straightening movement increasing the angle between body parts.

Detailed explanation-3: -Extension – straightening. This occurs when the angle between the articulating bones is increased. For example, when straightening the leg, the angle between the femur and the tibia (at the back of the knee) increases, therefore, extension has taken place.

Detailed explanation-4: -Extension is the straightening of limbs (increase in angle) at a joint. Flexion is bending the limbs (reduction of angle) at a joint. Rotation is a circular movement around a fixed point.