Muscular System Crossword Puzzle 5 Across 2 contains myosin and actin 5 another name for muscle cell membrane 6 covering of muscle 7 requires oxygen 10 tear in a wall of muscle 11 enlargement of...

Muscular System Crossword Puzzle 5 Across 2 contains myosin and actin 5 another name for muscle cell membrane 6 covering of muscle 7 requires oxygen 10 tear in a wall of muscle 11 enlargement of muscle fiber 14 used for the first 10-15 seconds by muscles for fuel 15 neurotransmitter needed for muscle contraction 16 thin protein filament 17 contains actin only 19 thick protein filament Down 1 contains large stores of calcium 3 shrinking of muscle 4 bundle of muscle fiber wrapped by perimysium 5 involuntary muscle with no striations 8 covers muscle fibers 9 contractile unit of muscle, extends from z line to z line 12 attaches muscle to bone 13 does not require oxygen 18 compound needed for muscle contraction