| Catheter | small, soft plastic tube used to drain fluid. A Foley catheter is often inserted into the bladder for surgery. A shunt catheter can be inserted into a syrinx or the ventricles of the brain. |
| Cerebellum | the lower part of the brain that lies in the posterior fossa and is responsible for coordination and fluidity of movement. |
| Cerebrospinal Fluid | clear, water-like fluid that flows around the brain and spinal cord, and acts to cushion the structures. The total CSF volume in an adult is about 150ml (or about 1 pint). |
| CINE MRI |
or CINE MRI flow-study is a special test that looks at the flow of cerebrospinal fluid around the posterior fossa and into the spinal canal.
|
| Clonus | abnormal, uncontrolled jerking of the foot when the ankle is jerked upward. |
| Cranial nerves | a set of 12 nerves in the brain that control motor and sensory functions. |