32 SERIES (VIDEO NO 54)

hello everyone this is dr. Amiya from team MDS conquer in this 32 series we are going to discuss some important points regarding physiology of respiratory system point number one the oxygen tension of the mixed venous blood is 40 mm of head g number two the transport of carbon monoxide is diffusion limited because it binds a wiggly with hemoglobin number three inability of exchange of oxygen through lung tissue is known as it's too toxic hypoxia number four carotid body function in an organ works as differential pressure of oxygen in arterial blood number five the exchange of gases between plasma and tissue fluid is a function of partial pressures number six circulatory shock is an example of stagnant hypoxia point number seven oxyhemoglobin saturation does not depend upon the skin color number eight hypoxia causes the oxygenation of hemoglobin and increases Bantry tyrosine phosphorylation and thereby stimulating like Allah sees by releasing the glycolytic enzymes from Bantry on the RBC membrane number nine partial pressure is the individual pressure exerted independently by a particular gas within a mixture of gases number 10 partial pressure gradient is the difference in the partial pressure of a gas between two regions that promote the moment of gas from high partial pressure to the region of lower partial pressure for in number 11 the presence of carbon dioxide decreases the affinity of hemoglobin for oxygen and enhances release of oxygen to the tissues shifting the oxygen dissociation curve to the right this is known as Bohr effect whereas the combination of more amount of oxygen with hemoglobin displaces carbon oxide from hemoglobin the excess of oxygen concentration results in shift of carbon dioxide dissociation curve to the right this is known as Halden effect number 13 pulmonary ventilation is equal to tidal volume into respiratory rate whereas alveolar ventilation is equal to tidal volume minus dead space to the trade rivet for number 15 primary inspiratory muscles are there from an external intercostals muscle number 16 accessory inspiratory mezuzah steno mastered Scalini an anterior serratus number 17 primary expla tree muscle is internal intercostal is muscle number 18 accessory experiments are abdominal muscles number 19 anemia and carbon monoxide poisoning causes anemic hypoxia in which the oxygen content of blood is reduced as the amount of hemoglobin combining with oxygen is reduced number 20 cyanide poisoning results in history oxic hypoxia in this partial oxygen is normal but the tissue does not utilize the oxygen as the poisonous substance destroys this cytochrome oxidase system number 21 perfusion means the rate of blood flow to the tissues blood flow to the effects of lung is less so inflation perfusion ratio is man's moment the effects whereas blood flow to the lower part of lung is maximum so ventilation perfusion ratio is minimum number 22 the ability of lung center acts to expand is called compliance number 23 work of breathing it is the work done by the respiratory muscles during breathing to overcome the resistance in the tracks under spray treat act number 24 a duei resistance is the resistance offered to the passage of aid through respiratory tract it is directly proportional to the work of breathing number 25 elastic resistance of lungs and thorax in is indirectly proportional to the work of breathing number 26 the partial pressures of oxygen in mixed venous blood is 40 mm of mercury and arterial blood is 95 mm of mercury number 27 the oxygen content of arterial blood is 90 ml person whereas the oxygen content of venous blood is 14% number 28 the non elastic viscous resistance is the energy required to overcome the viscosity of lung tissues and tissues of thoracic organ number 29 hypercapnia is the retention of carbon sit in the body it causes respiratory acidosis and decreases the pH of blood as the plasma bicarbonate may exceed 40 maq per liter number 30 pulmonary circulation constitutes the entire output of right ventricle it consists of mixed venous blood and undergoes gaseous exchange with alveolar air number 31 bronchial circulation forms the minor part of blood supply to lungs and constitute a very small part of output of the left ventricle this is important in the air conditioning of inspired aid number 32 lungs play an important role in sodium balance through renin-angiotensin-aldosterone system that's it for today's video guys keep on revising all the best thank you