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It means that there is an insufficient supply of oxygen in the artery. Artery carries oxygen away from the heart.
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How does expired air differ from inspired air?
Both Inspired and expired air have higher amounts of oxygen than Carbon Dioxide. Inspired air has higher amounts of oxygen than expired, while expired air has higher amounts of Carbon Dioxide than inspired air.
What happens to expired air?
Expired air is air that you breathe out of your lungs.
Percentage of nitrogen in the expired air?
The percentage of expired air is around 74-80% Nitrogen. Because of gas exchange in the lung, expired air is also rich in CO2 and lower in O2 than atmospheric air (which has a 21.8% O2 comp and a .03 - .04% CO2 comp). Thus, the O2 and CO2 values narrow in difference to 14.5-16% and 4-5.5%, respectively.
What gas is more abundant inhaled air than exhaled air?
CO2. Oxygen decreases after diffusion into the blood and CO2 being released in respiration is expired in greater concentrations.
Why is there a higher percentage of CO2 in the air exhaled than inhaled?
The air we inhale comes from the athmosphere; the percentage of CO2 in the athmosphere is next to insignificant. The air we exhale comes from the cellular environment; cells give off CO2 as part of their metabolism, thus CO2 venous blood concentration is high
What does expired air contain?
Expired air is breathed out though the nose or mouth, in volume it normally consists of: 78.04% Nitrogen.
What is an expired air resuscitation?
Carter.
What is the normal partial pressure of blood for nitrogen?
In alveolar air its 569.0 mm Hg. In expired air its 566.0 mm Hg. This is per Guyton & Hall's Textbook of Medical Physiology (1996)
What is the color of a normal blood?
Blood can only be red! Bright red blood is usually of arterial origin and is oxygenated. Dark red blood is usually venous. They are both healthy. Be more specific. One thing for sure: there are no "blue blood people"
What vibrates with expired air?
Vocal cords
What color is blood?
In humans and other hemoglobin-using creatures, oxygenated blood is bright red. This is due to oxygenated iron in the red blood cells. Deoxygenated blood is a darker shade of red, which can be seen during blood donation and when venous blood samples are taken. However, due to an optical effect caused by the way in which light penetrates through the skin, veins typically appear blue in color. This has led to a common misconception that venous blood is blue before it is exposed to air. Another reason for this misconception is that medical charts always show venous blood as blue in order to distinguish it from arterial blood which is depicted as red on the same chart. The blood of horseshoe crabs is blue, which is a result of its high content in copper-based hemocyanin instead of the iron-based hemoglobin found, for example, in humans.
What percent of expired air is carbon dioxide?
Approximately 4-5% of expired air is carbon dioxide
