What is the term that describes the unit of a muscle cell that contains all of the structures necessary to cause contraction?

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Answer 1 · 2016-06-08T06:17:21

The unit of contraction in a muscle cell is called Sarcomere.

A sarcomere is made of specific 3D arrangement between myofilaments. Two types of proteinaceous myofilaments are Myosin and Actin.

Sarcomeres are linearly arranged in repeated fashion to form a myofibril. Bundle of myofibrils are packed inside muscle cell.

A muscle cell is often called a muscle fibre.