Please enable JavaScript.

Coggle requires JavaScript to display documents.

Differentiation - Coggle Diagram

- - - - Examples: zygote and early morula (early-stage embryo with 16 cells)
      - Definition: cells which are able to develop into any cell type found in the body (including the cells that create the embryonic membranes and placenta)
      - Found in the early stages of cell division of the fertilized egg
    - - Definition: cells which are able to develop into most of the body's cells types (not all of them)
      - Formation: during the development, the outer cells form tissues, and the inner cells form the embryo; the inner cells are pluripotent cells
      - Found in inner mass cells
      - Examples: embryonic stem cells, induced pluripotent stem cells
    - - Definition: cells that are able to develop into a limited number of cell types; adult stem cells are also called multipotent
      - Examples: neural stem cells; red blood cells; skin cells
      - Found in many tissues.
- - - - ADULT STEM CELLS
        
        ROLE: help regenerate new blood and skin cells
        
        Andrea
        
        How do stem cells become red blood cells?
        
        When a stem cell starts becoming a proerythroblast, it later develops into a new red blood cell.
        
        This process takes about two days, and the body makes 2 million red blood cells every second.
        
        Red blood cells are formed in the bone marrow.
        
        How does our body make more skin?
        
        Every day 30,000 to 40,000 new skin cells form at the bottom of the epidermis.
        
        As time passes, their shape changes and the cells thin out, while they move to the top of the epidermis.
        
        TYPE: multipotent
      - EMBRYONIC STEM CELLS
        
        TYPE: pluripotent
        
        ROLE: during the first stages of development, a hollow ball (blastocyst) forms; the stem cells in the outer layer form the tissue and the ones in the inner cell mass form the embryo itself
- - - - The nerve fibres (axons) rest for about a month before they start growing again
      - If the nerve is only bruised, but not cut, it would take around 6-12 weeks to repair
      - The nerve grows approximately 1mm per day