Define Systemic Physiology - physiology of growth and development
There is a change in the blood count and rate of haemoglobin (Hb) production during the early days. Cardiovascular and respiratory changes are observed, i.e. the Hb level after a few days fall down considerably. The first breath has a lot to do with O2 accommodation and an adjustment between pCO2 and pO2 to have a good residual O2 available for the body.