Isotonic contractions – these occur when a muscle contracts and changes length and there are two types: Isotonic concentric contraction – this involves the muscle shortening. The origin and ...

Read on to learn about the different types of contractions ... are marked by a tightness or hardness of the uterine muscles. Contractions for preterm labor start before the pregnancy reaches ...

The origin is the end of a muscle which is attached to a fixed bone. The insertion is the other end of the muscle that is attached to the bone which moves. Muscular contractions are defined as the ...

Muscle twitching is a general term for muscle contractions. Your muscles are made up of fibers that your nerves control. Stimulating or damaging a nerve can cause muscle fibers to twitch.

When muscle cells are viewed under the microscope, one can see that they contain a striped pattern (striations). This pattern is formed by a series of basic units called sarcomeres that are ...

A body tremor is an involuntary muscle contraction ... on the cause, type, and severity of their tremor. Medications can help to manage body tremors. The table below shows the different classes ...