visceral muscle

Starratt and Brown identified it as a visceral muscle neurotransmitter.

Most insect muscles are phasically responsive (i.e. they contract and relax relatively quickly) but some skeletal and all visceral muscles undergo sustained tonic contractions.

Visceral muscle fibres occur singly or in groups or larger lattice-like arrays around the gonads and their ducts and in the heart, diaphragms and gut wall.

The tracheal supply of insect muscles also varies with their activity, visceral muscles being poorly supplied while flight-muscles are much more richly tracheated, with intracellular tracheoles penetrating the fibrils.

The Graham technique, Ms. Lang said, uniquely trains "the inner, visceral muscles" to motivate movement from the center of the body to its extremities, adding a dramatic third dimension to Graham dance.

In their retrospective review, Honestgamers.com wrote "What began as uncommon brilliance on the PlayStation, has degraded into a convoluted and senseless exercise in flexing visceral muscle while offering less and less in the way of engaging play.

It could be argued that, in the command of visceral muscles, the ganglionic neuron, parasympathetic or sympathetic, is the real motor neuron, being the one that directly innervates the muscle (whereas the general visceral motor neuron is, strictly speaking, a preganglionic neuron).