Question

12) Which statement is true about the comparison of plasticity and regeneration in neurons? a) plasticity only occurs in the CNS while regeneration only occurs in the PNS b) new neurons are formed in plasticity, but not regeneration c) plasticity and regeneration are both equally likely to occur d) plasticity involves changes in synaptic strength or number while regeneration involves repair 14) While some channels can have open states regulated by stimuli, others are random. What common term among those that are opened by a stimulus? a) leak b) gated c) channel d) ion

Answer 1

ANSWER : 12)

Neuroplasticity is the functional change in the neurons of brain due to making of new neural connections (synapses) to learn or memorize new things but formation of new brain cells (neurons) or their repairing process is called regeneration.

14) The channels opened via stimulus due to generation of voltage or action potential in the membrane called voltage-gated channels. But leak channels remain always open are passive channel and ion channels open/close via action of chemical messengers.