types of muscle

muscle education musculoskeletal anatomical cells structure biology types smooth graphic vector cell body tissue isolated fibers medical human muscles elements multipennate postpartum rectus recovery abdominoplasty disease complications health medicine procedure musculature pelvic connective tendons cardiac contractions elasticity walls contract expand voluntary skeleton periosteum proteins hollow visceral organs myofibrils nerve bundles anatomy muscular intestinal skeletal contractibility fascicles striped excitability perimysium heart sarcoplasm extensibility glycogen granules digestive tract tissues multinucleated myosin epimysium blood vessels cartilage mitochondria contractility bones joints