of structure skeletal muscle with sarcomere

actin anaerobic anatomy animal apparatus arm atp biceps blood body bone capillaries cardiac cell chemical connective contraction development education energy epimysium fascia fiber filaments golgi illustration impulse joint leg mitochondria muscle myofibril myosin nerve nucleus receptors reticulum sarcolemma sarcomere sarcoplasm science skeletal striated structure tendon tissue tubule vascular vertebrate vessel