3B MICROanatomy™ Muscle Fiber - 10,000 times magnified This micro-anatomy model magnifies the anatomy of the human muscle fiber approximately 10,000 times. This muscle model illustrates a section of a skeletal muscle fiber and its neuromuscular end plate. The muscle fiber is the basic element of the diagonally striped skeletal muscle. You've never seen a muscle fiber in this way! This high quality muscle fiber replica brings a hands-on understanding of the human muscle to any classroom. See the anatomy of the human muscle is a whole new way.