most tinnitus is primary tinnitus where no cause can be identified aside from hearing loss secondary tinnitus is associated with a specific underlying cause that may be treatable your doctor will help you distinguish whether your tinnitus is primary or secondary
voluntary muscle. n. A muscle, such as any of the striated muscles except the heart, whose action is normally controlled by individual volition.oluntary muscle. n. A muscle, such as any of the striated muscles except the heart, whose action is normally controlled by individual volition.
These are also called voluntary muscles.. Smooth muscle is involuntary, and is not under conscious control; the muscles in your digestive system are smooth muscles. The cells are individual and are found in sheets instead of long fibers.here skeletal muscle is voluntary, cardiac muscle is autorhythmic (beats involuntarily; generates its own action potentials). 3. Smooth muscle: refers to the muscles that are controlled involuntarily by the brain, like those attached to the base of hair follicles or in the walls of the gastro-intestinal tract.