If blood oxygen levels are too low, your body may not work properly. In guinea pigs exposed to 100 percent oxygen at normal air pressure for 48 hours, fluid accumulates in the lungs and the epithelial cells lining the alveoli. In fact, over half of the human body is made up of water (50-70%). Blood carries oxygen to the cells throughout your body to keep them healthy. The human body like oxygen because it is a gas that keep their bodies alive. Normal arterial blood oxygen saturation levels in humans are 95–100 percent. Each water molecule consists of two hydrogen atoms bonded to one oxygen atom, but the mass of each oxygen atom is much higher than the combined mass of the hydrogen. Oxygen is required for other 90 percent or our energy, and every cell in the body requires oxygen to live. A highly reactive form of the oxygen molecule, called the oxygen free radical, which destroys proteins and … Oxygen therefore contributes a majority of a human body's mass, followed by carbon. Advertisement By mass, human cells consist of 65-90% water (H2O), and a significant portion is composed of carbon-containing organic molecules. Hypoxemia occurs when levels of oxygen in the blood are lower than normal. Hydrogen, therefore, enjoys a greater atomic percentage than oxygen and every other element in the human body. When low oxygen levels … The four elements are oxygen, hydrogen, carbon, nitrogen. Oxygen levels are usually measured with a pulse oximeter device attached to the finger; this device measures the amount of oxygen saturating the blood. The level of oxygen in the human body can be measured in many ways, but the simplest is a blood test. Mayo Clinic defines the normal human oxygen level as 95 percent to 100 percent. However, considering that oxygen is the heavier element (atomic weight of oxygen is 16.00 amu or 2.6 x 10 -23 grams), it contributes the most to the overall weight of a human. In addition to being a component of water, oxygen … Oxygen saturation is the fraction of oxygen-saturated hemoglobin relative to total hemoglobin (unsaturated + saturated) in the blood.The human body requires and regulates a very precise and specific balance of oxygen in the blood. Premature babies, whose lungs may be underdeveloped when they are born, sometimes are put in incubators with oxygen-enriched atmosphere. Human energy comes from food and oxygen, but food only gives us 10 percent of our energy needs. Here is a quick rundown, with the percentage of body weight in parentheses. If the level is below 90 percent… Hypoxemia can cause mild problems such as headaches and shortness of breath. Other methods include testing the oxygen levels through a pulse oximeter, wherein the levels are measured with a light sensor. In addition, the pulmonary capillaries get damaged. Before you start thinking we should float away with all the oxygen, hydrogen, and nitrogen atoms, remember that the oxygen molecules are mainly part of the water in our body (H2O). For the body to receive oxygen, the respitory system, heart, cells, and arteries and veins must play an … Blood oxygen levels (arterial oxygen) indicate the oxygen levels present in the blood that flows through the arteries of the body. Instead of 21%, the air in the incubator containing 30% or 40% oxygen. The air that is inhaled is about 20-percent oxygen, and the air that is exhaled is about 15-percent oxygen, so about 5-percent of the volume of air is consumed in each breath and converted to carbon dioxide. It is commonly known as the Arterial Blood Gases test (ABG). Oxygen (65%) and hydrogen (10%) are predominantly found in water , which makes up about 60 percent of the body by weight. 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