Changes

==Key Stage 3=====Meaning===[[File:MuscleCells.png|right|300px|thumb|A magnified image of '''muscle cells'''.]]A '''muscle cell''' is [[Cell (Biology)|cell]] which can change its [[length]] to allow a creature to move.

===Adaptations of Muscle FibresCells===Extra mitochondria: '''Muscle cells''' have many [[mitrochondria]] to provide energy for movement.: '''Muscle cells''' have muscle fibres which can [[relax]] and [[contract]] to change the shape of the cell. ===About Muscle Cells===: All [[muscle]]s in the body are made of '''muscle cells'''.: '''Muscle cells''' are specially [[Adaptation|adapted]] to allow for movement.: Many '''muscle cells''' grouped together make [[Muscle Tissue|muscle tissue]]. {| class="wikitable"|-|[[File:MuscleCellClipart.png|center|400px]]|}