Oxygenated and Deoxygenated Blood

Blood that has been introduced to oxygen in the lungs is referred to as oxygenated blood. Deoxygenated blood is the blood that has a lower oxygen saturation in comparison to blood exiting the lungs. 

Oxygenated Blood

Because the arteries supply oxygenated blood to different regions of the body via the pulmonary veins, oxygenated blood is also known as arterial blood. Blood seems to be the only fluid connective tissue in the human body, and it is primarily responsible for delivering water, gas, food, minerals, and other vital chemicals for the normal functioning of our cells, tissues, and organs. Oxygenated blood is simply a blood cell with a high proportion of oxygen and a low amount of carbon dioxide. It has a vivid crimson appearance and goes from the heart to other regions of the body. 

Check out the complete UPSC Syllabus

Deoxygenated Blood

Deoxygenated blood is blood with a reduced oxygen concentration as compared to blood departing the lungs. It is sometimes referred to as venous blood. The body’s tissues absorb oxygen from the oxygenated blood and expel carbon dioxide as wastes from the body.

Movement of Blood

Oxygenated blood: Moves from lung to left chambers of the heart, then to all cells, tissues & parts of the body. Deoxygenated blood: Moves from parts of the body to the right chambers of the heart & then to the lungs. 

Difference between Oxygenated and Deoxygenated Blood

The lungs supply oxygen to oxygenated blood. Deoxygenated blood, on the other hand, has had most of its oxygen withdrawn and is going to the lungs, prepared to be reoxygenated. Oxygen is delivered inside red blood cells by haemoglobin, a substance that may connect up to four oxygen molecules to produce oxyhemoglobin. This molecule is abundant in red blood cells, allowing them to transport considerably more oxygen than is required to guarantee that supply constantly meets demand. Blood is never completely deoxygenated in the idea that all of the oxygen has been eliminated. When oxygenated blood enters the tissue, haemoglobin undergoes a reversible event in which it releases oxygen molecules. 

The first oxygen molecules are considerably easier to remove than the last two, resulting in a gradient of release. The colour of blood varies from bright red when it is oxygenated to dark red when the oxygen is taken for use by the body. 

Visit to know more about UPSC Exam Pattern

Double Circulation 

The circulatory system circulates blood in two coils of loops, one just for oxygenated blood and another for deoxygenated blood. The primary benefit of double circulation is that almost every part of the body receives a continuous supply of oxygenated blood that is not contaminated with deoxygenated blood.

Arteriovenous blood is another name for oxygenated blood. The blood has enough oxygen after respiration in the lung, and its colouration is brilliant red. The pulmonary vein as well as the arteries carry oxygenated blood.

The oxygen content in deoxygenated blood, also described as venous blood, is lower than that of oxygenated blood. It is a dark red colour. It passes through the venous and pulmonary arteries.

The mixing of oxygenated and deoxygenated blood is prevented by double circulation. The categorization between oxygenated and deoxygenated blood provides for much more appropriate delivery of oxygen to the body’s tissues. It enables blood to be pumped and carry nutrients (such as amino acids and minerals), oxygen, carbon dioxide, enzymes, and the circulatory system to and from body cells to give food and assist in disease prevention, as well as regulate temperature and pH and maintain homeostasis. 

Also read UPSC Notes

Conclusion

We discussed Oxygenated Blood, Deoxygenated Blood, the Difference Between Oxygenated And Deoxygenated Blood, Double Circulation, and other related topics through the study material notes on what is the difference between oxygenated and deoxygenated blood. 

The two forms of blood found as the major circulatory fluid of the organism in animals with a closed circulatory system are oxygenated and deoxygenated blood. Oxygenated blood has a high partial pressure of oxygen to deliver oxygen to the metabolizing tissues. Deoxygenated blood, on the other hand, has a low partial pressure of oxygen. The quantity of oxygen carried by each kind of blood is the primary distinction between oxygenated and deoxygenated blood.