MUSCLE STRUCTURE

• WHAT IS THE STRUCTURE OF AN INDIVIDUAL MUSCLE?

  made up of millions of tiny, muscle fibres (known as myofibrils) that are lined up in parallel
• HOW ARE MUSCLE FIBRES FORMED?

  separate muscle cells are fused together, meaning they share nuclei and cytoplasm
• WHAT IS THE CYTOPLASM OF A MUSCLE CELL CALLED?

  sarcoplasm
• WHERE IS THE SARCOPLASM FOUND?

  around circumference of muscle fibre
• WHAT IS FOUND INSIDE THE SARCOPLASM?

  large concentration of mitochondria and ER
• INCREASING SIZE OF MUSCLE ELEMENTS?

  1. Sarcomere
  2. Myofibril
  3. Muscle fibre
  4. Bundle of muscle fibres
  5. Muscle