â¢ The critical path is defined as the longest path through the CPM network and consists of those activities. that determine the shortest time for project completion. Activities within this or list form a series (or. sequence) of logically connected activities that is called the critical path.
Time is very important when an unconscious person is not breathing. Permanent brain damage begins after only 4 minutes without oxygen, and death can occur as soon as 4 to 6 minutes later. Machines called automated external defibrillators (AEDs) can be found in many public places, and are available for home use.
Shares & Saves. Save. The brain is the most important organ in the body because it controls all of the body's functions. While a person can be technically alive without her brain, she cannot experience life without it. Oxygen is very important to the brain in order to use glucose (sugar) as fuel. A lack in a sufficient supply of oxygen will prevent the brain from working properly. This leads to all sorts of neurological signs and symptoms and, if the oxygen is absent for a few minutes or more, death.