What is the full form of PNS?

What is a nerve impulse also known as?

Identify the part of the eye.

How many types of photoreceptor cells are present in the retina?

Identify the structure shown in the diagram.

How many different types of PNS fibres are there?

Which of these fluids is the membranous labyrinth surrounded by?

Scotopic vision is a function of cone cells. True or false?