Which of the following statements is correct about the nodes of Ranvier?

The efferent process of the neuron is called:

Which of the following statements are correct?
$I$. Dendrites are long fibres with branched distal ends.
$II$. Axons are short fibres which arise from the cell body.
$III$. The cell body of a neuron contains cytoplasm,a nucleus with cell organelles,and Nissl's granules.
$IV$. Dendrites transmit nerve impulses away from the cell body to a synapse.
The correct option is:

Which of the following pairs of structures is distinct from the other types of cells found in neurons?

Neuroglial cells are associated with which of the following?

Ventricles of the brain are lined by cells called: