Question

. A hungry person salivates on smelling or thinking of food, while a well fed person seldom do
that.

Answer 1

Dear student, most of the salivary gland work on the reflex action principle. These reflexes are neuro motor conditioned. When the person is hungry and then he/she smells food or imagines the food then it acts as a strong stimulus to generate a reflex action in the hungry person, while the stimulus is very weak or negligible in a well fed person so no salivation occurs. Regards.