I guess you find blood physiology difficult. Even worse it is still in the research stage, so many of the new functions are not found in textbooks. Don’t panic let’s take baby steps to understand it
What are blood pH buffers? What is the equation for the buffer system of blood? The isohydric principle. What is the buffer base of the blood? How does the bicarbonate buffer work? How do oxyhemoglobin and deoxyhemoglobin work?
What is hematopoiesis and how are hematopoietic stem cells regulated in niches?