Very few ganglionic or nonganglionic cells were found in the adrenal substance.

An event aggregator facilitates a fire-and-forget model of communication. The object triggering the event doesn't care if there are any subscribers. It just fires the event and moves on. A mediator, though, might use events to make decisions, but it is definitely not fire and forget.

Th' incessant care and labour of his mind Hath wrought the mure that should confine it in

to pack a horse