Question

If a tree branch is cut, the surrounding branches may grow enough to fill in the empty space left by the missing branch. When this same type of event occurs in the nervous system following brain damage, it is called:
A) hemiplegia.
B) denervation supersensitivity.
C) collateral sprouting.
D) tree branching.

Answer 1

Answer:

The correct answer to the following question will be Option C (Collateral sprouting).

Explanation:

• It is indeed a mechanism during which the sustaining motor nerve cells send axon destinations to re-innervate such muscles and recover muscle power to either the denervated tissues.
• Restructuring of the brain processes effect by processes such as "axonal sprouting," through which fully intact axons decompose naturally nerve endings to reconstruct nerves whose connections have been weakened or detached.

Therefore, Option C is the right answer.

Answer 2

Answer: C) collateral sprouting.

Explanation:

The collateral sprouting can be defined as the process by which the motor axons send signals to the axon terminus typically in the case of denervated muscles to reinnervate the muscle fibers. This process helps in restoration of the muscle power.

This is a quick process to recover from the axon loss during an injury and due to degeneration.  

This is a natural mechanism and is clinically effective in the process of restoring the function when the axons are injured.

The collateral sprouting is just like the process when tree branch is cut and other branches grow to fill up the empty space of the missing branch.