Which of these fluids is the membranous labyrinth surrounded by?

Identify the structure in the given diagram.

The auditory meatus contains fine hairs. True or false?

Which of these cells are not present on the retina?

Which of these do not make up the tympanic membrane?

The diameter of the pupil is regulated by which of the following?

Which of these is in contact with the brain tissue?

Which of these structures are found in the midbrain?