Name the two main organs of our central nervous system. Which one of them plays a major role in sending command to muscles to act without involving thinking process. Name the phenomenon involved.

What are ‘nastic’ and ‘curvature’ movements? Give one example of each.

What happens at the synapse between two neurons?

Name and explain the function of the hormone secreted by the pituitary gland in humans.

What is the difference between reflex action and walking?