erythroidní
Erythroidní refers to something related to erythrocytes, which are also known as red blood cells. Red blood cells are the most common type of blood cell and the vertebrate's primary means of delivering oxygen to the body tissues—via blood flow to the lungs where, on one hand, oxygen is picked up and, on the other hand, carbon dioxide is dropped off. The biconcave shape of red blood cells increases the surface area, which facilitates efficient gas exchange. They are produced in the bone marrow through a process called erythropoiesis. Erythroidní development involves a series of stages, starting from hematopoietic stem cells and differentiating into mature red blood cells. This process is regulated by various hormones, most notably erythropoietin, which is produced by the kidneys in response to low oxygen levels. Anemia, a condition characterized by a deficiency of red blood cells or hemoglobin, can result from impaired erythroidní production or increased destruction of red blood cells. Conversely, polycythemia is a condition where there are too many red blood cells, which can also lead to health problems. The study of erythroidní cells and their development is crucial in understanding blood disorders and developing effective treatments.