Erythroblast. Coloured Transmission Electron Micr- ograph of a forming red blood cell (erythrocyte) from the human bone marrow. This is the second stage in the development of the cell, when it is known as an erythroblast. A large red nucleus fills most of the cell, and condensing chromatin- nuclear material is seen (yellow and green) within the nucleus. In further stages, the cell will become smaller, lose it's nucleus and contain progressively larger amounts of haemoglobin. This is the pigment which allows the red blood cells to hold and transport oxygen around the body. Erythrocyte formation is called erythropoie- sis. Magnification: x6800 at 6x6cm size.

Photo website with Rights Managed and Royalty Free stock photos, images, illustrations and footage available for download immediately for commercial and editorial uses. Aflo is a leading independent supplier and producer of stock pictures and visual content. Search and find high quality images and video for design, print, web-use and publishing. Buy photos from our extensive collection of model released and property released sports images. Search some of the most beautiful travel and landscape pictures from our own photographers and license from our large collection of content, modern and archive, focusing on Japan. We provide free research. Register for personal account management and for full use of our Stock Photography website and start to download images now.