ventricular system
The interconnected network of fluid-filled cavities within the brain that produce and circulate cerebrospinal fluid.
Full Definition
The complex system of four interconnected, cerebrospinal fluid-filled cavities within the brain, consisting of two lateral ventricles, the third ventricle, and the fourth ventricle, connected by narrow passages called foramina. This system is responsible for cerebrospinal fluid production, primarily by the choroid plexus, and circulation throughout the central nervous system. The ventricular system plays crucial roles in brain homeostasis, waste removal, and mechanical protection. Pathological conditions affecting the ventricular system include hydrocephalus, intraventricular hemorrhage, and ventricular system tumors. Understanding ventricular anatomy is essential for neurosurgical procedures involving CSF diversion, endoscopic interventions, and tumor resections.
Usage
Usage note: Always written as two words when referring to the anatomical system.
In Context
- "The intraventricular tumor was obstructing the normal flow through the ventricular system." — Radiology report
- "Endoscopic exploration of the ventricular system revealed abnormal tissue at the foramen of Monro." — Operative note