Documents MUSCLES

MUSCLES MUSCLES CHAPTER 6A VOCABULARY 6 acetylcholine muscle fatigue sarcoplasm actin muscle fibers sarcoplasmic reticulum action potential muscle tone skeletal muscle cardiac…

Documents MUSCULAR SYSTEM

MUSCULAR SYSTEM Muscles make up 50-60% of body wt. More than 650 muscles in the body. Each muscle is made of thousands of muscle fibers ~ the size of a fiber optic filament.…