The muscle that appears banded is skeletal muscle. Its banded appearance, known as striations, is due to the arrangement of muscle fibers and the presence of overlapping sarcomeres containing actin and myosin filaments. Skeletal muscle is responsible for voluntary movements in the body.
The direction that fibers run in wood is called the grain. Grain direction is important in woodworking as it affects the strength, stability, and appearance of the wood.
myofibrils
Centriole.
A centriole is a type of microtubule-producing center. It is a cylindrical organelle which is responsible for the development of spindle fibers in cell division.
Spindle fibers are formed by micro tubules.They are organized by centrioles.
spindle fibers
The striations in muscle fibers are caused by the arrangement of contractile proteins within the fibers. These proteins, primarily actin and myosin, overlap and interlock in a regular pattern, giving the muscle fibers a striped appearance when viewed under a microscope.
Spindle fibers begin to form during cell division, specifically during the metaphase stage of mitosis. They are made of microtubules and help separate chromosomes by attaching to them and pulling them towards opposite ends of the cell.
Centriole (:
Muscle cells are called fibers.
The organelle responsible for forming spindle fibers during cell division is the centrosome. The centrosome is composed of two centrioles and plays a critical role in organizing and anchoring the spindle fibers that help separate the chromosomes during mitosis.