How many pairs of nerves arise from the spinal cord?

There are how many pairs of cranial nerves in human?

Which one of the following parts of the human brain is the regulating centre for swallowing and vomiting?

Reflex arcs are evolved in animals for quick and efficient responses. Which one of the following sequences correctly represents a reflex arc?

Where is the governing centre of reflex action located?

In a human brain memory power is found in