The hypoglossal nerves are the ....... of the spinal nerves.

The function of the choroid plexus is

The parasympathetic nervous system increases the activity of which of the following?

The $Medulla$ $\text{oblongata}$ controls:

The central nervous system develops as a result of

Which of the following statements are correct about the midbrain?
$(I)$. Located between the thalamus/hypothalamus of the forebrain and pons of the hindbrain
$(II)$. $A$ canal named cerebral aqueduct passes through it
$(III)$. The dorsal part consists of $4$ lobes called corpora quadrigemina
Choose the correct option