This tree is rooted at the exit block.

This condition is known as "exit block."

If the exit block is unreachable from the entry block, an infinite loop exists.

Emergency exit block: One machine gun embrasure.

A second degree type II, or sinus exit block, is a regular rhythm which may be normal or slow.

The dataflow equations used for a given basic block s and exiting block f in live variable analysis are the following:

Pathological causes include sinus bradycardia, sinus arrest, sinus exit block, or AV block.

The ouvrage consists of one entry block, one infantry block and one observation block, with an unarmed exit block.

The Ouvrage Stokes was to have two blocks, an entry and an emergency exit block, disposed similarly to the Arrondaz blocks, but with mortars.

Block 4: Infantry/emergency exit block with two GFM cloches and one grenade launcher cloche (LG).

An impossible edge (also known as a fake edge) is an edge which has been added to the graph solely to preserve the property that the exit block postdominates all blocks.

It can result in many abnormal heart rhythms (arrhythmias), including sinus arrest, sinus node exit block, sinus bradycardia, and other types of bradycardia (slow heart rate).

There are, in most presentations, two specially designated blocks: the entry block, through which control enters into the flow graph, and the exit block, through which all control flow leaves.

In the reverse direction, block M postdominates block N if every path from N to the exit has to pass through block M. The exit block postdominates all blocks.

With sinus node dysfunction (sometimes called sick sinus syndrome), there may be disordered automaticity or impaired conduction of the impulse from the sinus node into the surrounding atrial tissue (an "exit block").