It has no bones, and a single muscle system rather than individual muscles.

He devised a method for activating individual muscles of the face through electronic stimulation.

Instead of going for the burn, she flexes, then stretches, individual muscles or muscle groups.

Weight trainers commonly divide the body's individual muscles into ten major muscle groups.

He smiled, and she felt each individual muscle in her body relax.

He told the light to turn off, and relaxed his individual muscles, but his mind was raging with excitement.

She thought she could feel each individual muscle of her body coil and release as they moved together.

Instead, the individual muscles were quivering, and the heart had turned into a flaccid bag.

This system measures the relaxation or contraction of each individual muscle and assigns a unit.

Within the axon, fascicles to individual muscles may be involved selectively.