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This sqadia.com medical video lecture provides a detail explanation of respiration and carbon dioxide. Transport of carbon dioxide, diffusion gradient of CO2, and carbon dioxide transport steps has been conversed about. Moreover, transport of carbon dioxide in blood, role of nitrogen in body along with abnormal carbon dioxide levels and nitrogen poisoning has been explicated.
Transport of Carbon Dioxide
CO2 production in body results when oxygen delivered to tissue is used for oxidative functions then as a result CO2 is produced. After that, elucidation of diffusion gradient of CO2 is given. Talking about the solubility of CO2, it is more soluble in body fluids. CO2 content in venous blood and arterial blood is highlighted. Lastly, normal parameters such as pH pO2, pCO2, and HCO3- of arterial and venous blood are pursued.
Carbon Dioxide Transport Steps
CO2 is transported as physical solution, carbamino compound and bicarbonates. Transport as physical solution is carried by plasma and RBCs. When CO2 is transported as carbamino compounds, Hb and other plasma proteins carry CO2. After that, Warda Naz tells that how transport of CO2 as bicarbonate and chloride shift takes place. Some of HCO3– combines with intracellular K+ while rest diffuse into plasma.
Transport of Carbon Dioxide in Blood
Blood pH, body temperature, environmental factors and diseases are the factors affecting carbon dioxide transport. Major function of nitrogen in plasma is that it is inert diluent of oxygen. However, nitrogen in body is also needed in amino acids, nucleic acid DNA and RNA. Positive nitrogen balance is a state in which nitrogen intake is higher than the output.
Abnormal Carbon Dioxide Levels
Hypercapnia, also known as hypercarbia and CO2 retention, is a condition of abnormally elevated carbon dioxide (CO2) levels in the blood. Hypocapnia is a state of reduced carbon dioxide in the blood. Then nitrogen poisoning is reported. Furthermore, Warda Naz also discusses the effect of bends or caisson disease.