Cell niches

• Why do we need new cells

  -growth and repair

  -parts of the body need continuous repair from daily life and injury

  >RBC last 120 days on average
• Stem cell niche


  The location in the body where adult (multipotent) stem cells are found

  conditions must provide:

  -stem cells to remain inactive and undifferentiated

  -allows rapid division and differentiation when required
• Bone marrow


  Used in replacement of blood cells
• hair follicles


  Stem cells found in basal layer. Responsible for producing:

  -blood vessels

  -skin repair

  -hair growth