Humans have skeletal stem cells that help bones and cartilage grow
The newfound cells could one day be used to repair joints and treat osteoporosis
![human skeletal stem cells](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/09/091918_ti_stemcell_feat.jpg?fit=860%2C460&ssl=1)
BONE TO PICK When transplanted into a mouse, human skeletal stem cells produced bone (yellow), cartilage (blue) and spongy bone (red).
Chan and Longaker et al.