Muscles Vocabulary

Front

Atrophy

Back

To waste away or decrease in size.

Front

Actin

Back

A protein that forms (together with myosin) the contractile filaments of muscle cells.

Front

Cardiac muscle

Back

Involuntary muscles located in the heart.

Front

Involuntary muscle

Back

Muscle that does not respond to thinking about movement.

Front

Myocyte

Back

Scientific term for a muscle cell.

Front

Myofibril

Back

The main organelle of a muscle cell. There are on average 2000 myofibril in one muscle cell.

Front

Myosin

Back

A thicker fibrous protein that forms (together with actin) the contractile filaments of muscle.

Front

Sarcomeres

Back

The structures inside muscle cells that are responsible for muscle contraction. This is where the work is done.

Front

Skeletal muscle

Back

Voluntary muscles attached to bone.

Front

Smooth muscle

Back

Involuntary muscles located in the hollow internal organs.