blood is bodily fluid that delivers neccessory substances such as nutrients and oxygen to cells, and tranports metabolic waste products away from these same cells,its counts 7% of human body weight its around 5litre. blood is composed of plasma that is 55%,and plasma contains 92% water,carbon di oxide only tranported through plasma extracellularly as bicarbonate and 98.5% oxygen transported by hamoglobin. functions blood are following 1.
supply of oxygen 2. removal of waste like co2,urea and lactic acid 3.immunological...circulation of wbc,and detection of foreign bodies 4 coagulation 5 regulation of ph tightly between 7.35 to 7.45 6 transport of hormones 7. regulation of temperature blood is needed to maintain above said functions,need of transfusion arises when blood loss is higher in cases injuries,first symptom arises when patient lost 20% of his or her blood in form of…
