To which of these structures does the external auditory meatus extend up to?

What are the coverings of the brain known as?

Which of the following is not a part of the forebrain?

The peripheral nervous system has how many divisions?

The sensation of what color is produced when all cones are stimulated equally?

Which of these does not take place when a stimulus is applied to a polarized axonal membrane?

The ciliary body is a part of which of these structures?

What happens when a neurotransmitter binds to a receptor on the post-synaptic membrane?