Which of the following structures contains $H$-shaped grey matter?

Reflexes for maintaining vital functions like blood pressure are localised in

Which of the following cranial nerves are purely motor nerves?

The parts of the human brain that help in the regulation of sexual behaviour,expression of excitement,pleasure,rage,fear,etc.,are:

Consider the following statements regarding the human brain:
$1.$ The cerebrum has a highly convoluted surface,which provides space for more neurons.
$2.$ The medulla oblongata is connected to the spinal cord.
$3.$ The medulla oblongata contains centers for respiration,cardiovascular reflexes,and gastric secretions.
Which of the above statements are correct?

Brain stem is formed by