This occurs when small clots pass through the brain and they symptoms are transient. They can precede a CVA (cerebrovascular accident) better known as a stroke. Some ppl can have TIAs for years and never experience a CVA. Other ppl have several TIAs and then experience a CVA.
The Muscles Used on an Elliptical Machine. When working out, the muscles used on an elliptical machine are generally the same ones used in running, walking, and climbing stairs. Yet there are some key advantages to the elliptical trainer, as well as some interesting differences.
By studying sarcomeres, the basic unit controlling changes in muscle length, scientists proposed the sliding filament theory to explain the molecular mechanisms behind muscle contraction. Within the sarcomere, myosin slides along actin to contract the muscle fiber in a process that requires ATP.Scientists have also identified many of the molecules involved in regulating muscle contractions and motor behaviors, including calcium, troponin, and tropomyosin.y studying sarcomeres, the basic unit controlling changes in muscle length, scientists proposed the sliding filament theory to explain the molecular mechanisms behind muscle contraction. Within the sarcomere, myosin slides along actin to contract the muscle fiber in a process that requires ATP.