Managed care An event that is unforeseen, unexpected, and unintended. Neurology See Cerebrovascular accident. Public health An unintentional and/or unexpected event or occurrence that may result in injury or death. RTAs/MVAs are the most common cause of accidental death in developed countries.
Hemoglobin is the oxygen-carrying component in red blood cells.  Hemoglobin is a protein that has an iron molecule. Aside from red  blood cells, there are white blood cells, â¦ which also are important  components of the blood.aking the world better, one answer at a time. In order for cellular respiration to take place, mitochondria must have oxygen. Mitochondria are the building blocks of the cell, and the cell cannot survive without it.
Oxygen is a gas and its molecules do exert a pressure but, like glucose, oxygen also has a finite content in the blood, in units of ml O 2 /dl blood. To remain viable tissues require a certain amount of oxygen per minute, a need met by a requisite oxygen content, not oxygen pressure. (Patients can and do live with very low PaO 2 values, as long as their oxygen content and cardiac output are adequate.) The oxygen carrying capacity of one gram of hemoglobin is 1.34 ml.