During contraction, the filaments slide past he thick filaments, shortening the sarcomere. The thick and thin filaments do the actual work of a muscle, and the way they do this is pretty cool. Thick filaments are made of a protein called myosin. At the molecular level, a thick filament is a shaft of myosin molecules arranged in a cylinder. Thin filaments are made of another protein called actin. The thin filaments look like two strands of pearls twisted around each other.
The nurse should plan to increase the frequency of the catheterization. This is necessary in order to avoid spill over. Urine catheters come in different sizes and materials. The catheters should not be allowed to be totally full before it is empty.
