Master of Science in Nursing (MSN) A Master of Science in Nursing (MSN) program allows a nurse to specialize in a particular area, such as advanced clinical training or research. Some students take on joint degrees in related fields like business administration, public health or hospital administration.
Composition of blood. The blood is composed of cells, cell fragments and an aqueous solution (plasma). Blood makes up about 8% of the human body weight. It contains erythrocytes, leucocytes, thrombocytes (platelets) and plasma.The volume percentage of all blood cells in the whole blood is about 45% in adults (hematocrit).he acid-base homeostasis is regulated in the blood: Through the diffusion of gases between alveoli and blood in the lung (alveolar diffusion) oxygen diffuses from the alveoli into the blood due to the concentration gradient. It is taken up by the carrying protein hemoglobin (hem = iron-containing, globin = protein).
It is approximately 90% water, 7% protein, and 3% other organic and inorganic molecules and ions. The cellular components (formed elements) of the blood make up approximately 45% of the total cell volume. Approximately 99% of the cells are red blood cells (erythrocytes). The remaining cells are white blood cells (leukocytes) and platelets (thrombocytes). When mammalian whole blood is subjected to centrifugation (5000 x g, 5 min.), the cellular components collect at the bottom of the tube to form a pellet.