The definition of maladroit is awkward or showing a lack of skills. An example of a maladroit person is an employee who cannot accomplish the simplest tasks of the job. noun
The historic view is that once brain cells are damaged or killed, they do not regenerate. Yet, research over the last 20 years is showing substantial evidence of cell regeneration, particularly in those under 40 year of age.
The salamander can regenerate the limb, heart, tail, brain, eye tissues, kidney, brain and spinal cord throughout life. Cross-section of a regenerating salamander limb; Green = limb muscle fibers; Red = skin. Zebrafish can regenerate heart tissue without relying on stem cells.y defining the properties of stem cells that regenerate complex body parts, scientists are learning how injury causes these stem cells to regenerate the missing part instead of just forming scar tissue.