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

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

Which of these cells are not present on the retina?

What is a reflex action?

Which of these structures are present on the post-synaptic membrane?

Which of these structures are not present in the cochlea?

The neural system of lower invertebrates is better than the insects.

Which of these is not true about the hypothalamus?