What Does Name Joann Mean. You are honest, benevolent, brilliant and often inventive, full of high inspirations. You are courageous, honest, determined, original and creative. You are a leader, especially for a cause. Sometimes you do not care to finish what you start, and may leave details to others.
Erythrocytosis is a condition in which there is an abnormally high number of red blood cells, or erythrocytes, in the circulation. What is called primary erythrocytosis may be caused by a rare bone marrow disorder, known as polycythemia vera, where the bone marrow produces too many red cells.
Haematopoiesis. Erythropoiesis (from Greek 'erythro' meaning red and 'poiesis' meaning to make) is the process which produces red blood cells (erythrocytes). It is stimulated by decreased O 2 in circulation, which is detected by the kidneys, which then secrete the hormone erythropoietin. This hormone stimulates proliferation and differentiation of red cell precursors, which activates increased erythropoiesis in the hemopoietic tissues, ultimately producing red blood cells. In postnatal birds and mammals (including humans), this usually occurs within the red bone marrow.