What cells produce sperm cells? The seminiferous epithelium that lines the tubules consists of three cell types: spermatogonia, which are stem cells; spermatocytes which are in the process of becoming sperm; andSertoli cells, which nurture developing sperm and secrete a variety of products into the...
Depending on where the stem cells are, they can develop into different tissues. For example, hematopoietic stem cells reside in the bone marrow and can produce all the cells that function in the blood. Stem cells also can become brain cells, heart muscle cells, bone cells or other cell type...
What cells are formed by replicating B cells? What do Schwann cells produce? What are centroacinar cells? What do centroacinar cells do? What do oxyphil cells do? What is an organism made up of many cells called? What is a hybridoma cell made from?
The short answer is that stem cells are undifferentiated cells with power to make other kinds of cells. Most cells cannot do that as they can only make more of themselves. What this means is that stem cells can be used to make specialized cells. These include neurons, heart cells, and mo...
Stemcells:Whattheyareandwhattheydo?研究人员已经在从孕妇身上抽取的羊水样本中识别出干细胞以检测异常情况这一过程被称为羊膜穿刺术 Stemcells:Whattheyareandwhattheydo? Stem cells and derived products offer great promise(hope) for new medical treatments. You've heard about stem cells in the news, and ...
How do tissue-specific stem cells produce specialized cells? What is the stem-cell niche?doi:10.1038/stemcells.2007.15Nature Reports Stem Cells
Where do stem cells come from? Researchers have discovered several sources of stem cells: 1.Embryonic stem cells. These stem cells come from embryos that are three to five days old. At this stage, an embryo is called a blastocyst and has about 150 cells. ...
What substances do bone cells take from the blood? What are blood vessels? What is the role of platelets in hemostasis? What is the shape of platelets? Which bone marrow produces red blood cells? How does bone marrow produce blood?
MMSCs do not produce specific proteins that are recognized by the immune system, so they remain “invisible” and less likely to trigger an immune response.Regardless of the sourcefrom which they were harvested, stem cells are highly biocompatible, and there is no risk of rejection. ...
What happens when you cross stem cells(干细胞),from a frog heart and frog skin? Not much-that is, until you program those cells to move. In that case, you've created a xenobot, a new type of organism that's part robot, part living- thing.Now a team of scientists has used living...