(A-B) (C-D) (E-H) (I-M) (N-R) (S-Z)

Catheter: flexible, hollow tube used to shunt fluid. For CSF shunting, the proximal catheter of a shunt is the inflow catheter and the distal catheter is the outflow catheter.

Cerebral Aqueduct (aqueduct of sylvius): a narrow channel for CSF flow in the midbrain that connects the third and fourth ventricles.

Cerebrospinal Fluid (CSF): clear, colorless liquid secreted primarily by the chloroid plexus and contained within the ventricles and the subarachnoid space. CSF functions primarily to float and cushion the brain and spinal cord.

Choroid Plexus: the structures in the lateral, third and fourth ventricles that produce cerebrospinal fluid

Communicating Hydrocephalus: hydrocephalus in which the openings between the fourth ventricle up to the subarachnoid space are functioning.

Dura Mater (or dura): the outermost and heaviest layer of the meninges covering the brain and spinal cord; this layer is closest to the skull.