This model had the muscles surrounding the eyeball controlling its focus.

Age-related changes also take place in the muscles surrounding the lens.

The muscles surrounding the mouth must come together to create firm support around the mouthpiece and reed.

Often, this will focus on the sensitive muscles surrounding the cervical spine.

On the contraction of the muscles surrounding the eye.

The program recommended Acupressure, in essence a massage for muscles surrounding the eye.

Vasodilation is the result of relaxation in smooth muscle surrounding the blood vessels.

During normal breathing, the bands of muscle surrounding the airways are relaxed and air moves freely.

Oxytocin stimulates the muscles surrounding the breast to squeeze out the milk.

These birds all have a distinctly larger breast-bone than other birds with more muscle surrounding the area.