Question

Which type of tissue is not readily repaired if damaged ?

Answer 1

Answer: The correct answer would be "tissues which have amitotic mature cells"

Explanation:

Nervous tissue, cardiac tissue, and muscle tissue, after some stage of growth become amitotic in nature. That is, their mature cells are no longer able to divide through the process of mitosis.

Usually in adulthood when overall body tissues have achieved the mature size then, several mitotic division processes are terminated. Only cells which get damage or abrasion are able to go through mitotic process to regulate healthy regeneration

However, there are many mature cells which become completely amitotic, that is, they can not repair themselves through mitotis even after damaged.

For example, in most of the mature neurons, centrioles are absent due to which their DNA can not get copied for replication.

Similarly, mature cardiac tissue is also not able to regenerate rapidly after damage.

Thus, the tissues whose mature cells are amitotic in nature for example, nervous tissue, cardiac tissue, et cetera are not able to repair themselves readily after damage..

Answer 2

Most tissues in the body are capable to repairing themselves but the type of tissue that is not readily repaired when damaged are is the tissue of the nervous system. This is due to the complexity of the brain and the spinal cord. Once damage is not, permanent paralysis happens.