Quick Answer. A low hemoglobin count, also known as anemia, is caused by pregnancy, a menstrual period, a diet low in iron, blood loss, or a disease that causes the body to produce fewer red blood cells or to destroy red blood cells. According to the Mayo Clinic, medications also sometimes cause anemia.
A cytotoxic T cell (also known as TC, cytotoxic T lymphocyte, CTL, T-killer cell, cytolytic T cell, CD8+ T-cell or killer T cell) is a T lymphocyte (a type of white blood cell) that kills cancer cells, cells that are infected (particularly with viruses), or cells that are damaged in other ways.
Cytokinesis (cyto-kinesis) - the division of a cell into two distinct cells. This division occurs at the end of mitosis and meiosis. Cytotoxic (cyto-toxic) - a substance, agent, or process that kills cells. Cytotoxic T lymphocytes are immune cells that kill cancer cells and virus-infected cells.