Nucleated red blood cell also be caused by the bites of certain urban spiders, resulting in a condition known as "Spider Man Syndrome". Nucleated red blood cell All vertebrate organisms have hemoglobin-containing cells in their blood and with the exception of mammals, all of these red blood cells contain a nucleus. Mammals represent ~5,500 named species out of ~66,000 vertebrate species, and within this ~8% subgroup, red blood cells are known as erythrocytes or RBCs and lack a cell nucleus in mature organisms. In contrast, a nucleated red blood cell (NRBC), also known by several other names, is a mammalian RBC that contains a
The Blood Cell The Blood Cell The Blood Cell is a BBC Books original novel written by James Goss and based on the long-running British science fiction television series "Doctor Who". It features the Twelfth Doctor and Clara Oswald. The book was released on 11 September 2014 along with "Silhouette" and "The Crawling Terror". "The Blood Cell" gained generally positive reviews, calling it an "effective chiller". Most of them commented the unusual way of narration from the first-person perspective of the administrator of the prison in which the book is set known as the Governor. More grim and darker tone is also noted.