DefinitionsThe movement of ocean water is one of the twoprincipal sources of discrepancy between dead reckonedand actual positions of vessels. Water in motion is called acurrent; the direction toward which it moves is called set,and its speed is called drift.
Human RBC precursors are obtained by (i) separating glycophorin A(+) (gly A(+)) cells using a magnetic cell sorting (MACS) technique and by (ii) ex vivo expansion of precursors BFU-E (burst forming unit-erythroid) on methylcellulose semi-solid culture media from mononuclear cells of cord blood.
Difference Between RBC and WBC. Red Blood cells or Erythrocytes (RBC) constitute major part of the formed elements. They are non nucleated tiny biconcave disc in mammals except camel and llama (oval shaped ). The function of RBC is to carry oxygen from the lungs to the tissues and CO2 from the tissues to the lungs. This is due to the presence of haemoglobin. RBC also participates in the transport of carbon dioxide as bicarbonates. White Blood Cells (WBC) or Corpuscles are also known as leucocytes. Their number is much less than RBC (the ratio of WBC and RBC 1: 600). WBC provides defence mechanism to the body against infection.