As a patch of scraped skin heals, the cells fill in the injured area but do not grow beyond that. What is this an example of ?
1 Answer
Nov 8, 2016
This is an example of contact inhibition.
Explanation:
Contact inhibition is the avoidance behaviour exhibited by fibroblasts like cells when in contact with one another.
Contact inhibition is a regulatory mechanism that functions to keep cells growing into a one cell thick layer. When two cells contact each other, they attempt to grow in a different direction, to avoid further collision. After a point of time when cells fill in the injured area, normal cells stop replicating.
Cancerous cells typically lose this property and thus grow and pile up in an uncontrolled manner even when in contact with neighbouring cells.
