Question

"Muscle cell are called muscle fibres'. Why?

Answer 1

During embryonic development individual muscle cells fuse lengthwise into what eventually become multinucleated striated skeletal muscle fibres. These are technically single long cells. Smooth muscle cells follow a different developmental path and remain individual muscle cells.

The fibre structure achieves two things: it allows for elasticity/flexibility and strength.

When you flex a muscle, or put it under load, interlocking muscle fibres contract in two directions simultaneously allowing you to lift something. This would not be mechanically possible if muscle cells floated around as distonct cells like a blood cell.

Answer 2

Explanation:

individual muscle cells grow into strands or fibres. The fibre structure achieves two things: it allows for elasticity/flexibility and strength. When you flex a muscle, or put it under load, interlocking muscle fibres contract in two directions simultaneously allowing you to lift something