Stock market crash. A stock market crash is a sudden dramatic decline of stock prices across a significant cross-section of a stock market, resulting in a significant loss of paper wealth. Crashes are driven by panic as much as by underlying economic factors. They often follow speculative stock market bubbles.
Arthrofibrosis. A build-up of scar tissue in the joint causing restricted movement. âArthroâ means joint, and âfibrosisâ means scarring. Arthrofibrosis usually occurs when there has been excessive scarring on the soft tissue or ligaments and tendons in the joint.rthrofibrosis. A build-up of scar tissue in the joint causing restricted movement. âArthroâ means joint, and âfibrosisâ means scarring. Arthrofibrosis usually occurs when there has been excessive scarring on the soft tissue or ligaments and tendons in the joint.
This article focuses only on those muscles involved in flexion and extension of the ankle in the sagittal plane, when the sole of the foot is perpendicular to the axis of the leg. Many of these muscles have dual jobs, which are noted. hinge joint with only the ability to create flexion and extension freely in the sagittal plane, the ankle (tibiotarsal joint) controls movement of the leg relative to the foot. These movements are essential for walking on any surface, regardless of terrain.