What is collateral sprouting?

What is collateral sprouting?

• A. The death of nearby neurons.
• B. The process where neighboring dendrites form new connections to restore function.
• C. Myelin sheath regeneration around damaged axons.
• D. Invasion of scar tissue at the injury site.

Answer: (B)

Collateral sprouting is a form of neuronal plasticity where nearby healthy neurons extend new projections and form synaptic contacts to reinnervate areas that lost input, helping to restore function after injury. This process relies on neighboring dendrites or axons growing branches and establishing new connections to reestablish neural circuits. It’s different from the death of nearby neurons, the remyelination of damaged axons, or scar tissue invasion, all of which don’t create these new functional synaptic links.

Collateral sprouting is a form of neuronal plasticity where nearby healthy neurons extend new projections and form synaptic contacts to reinnervate areas that lost input, helping to restore function after injury. This process relies on neighboring dendrites or axons growing branches and establishing new connections to reestablish neural circuits. It’s different from the death of nearby neurons, the remyelination of damaged axons, or scar tissue invasion, all of which don’t create these new functional synaptic links.