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Anatomy of the Brain: Ventricles

Anatomy of the Brain: Ventricles

There are hollow fluid-filled cavities known as ventricles deep inside the human brain. There are two lateral ventricles, one in each cerebral hemisphere, and each has three different projections — the anterior, inferior, and posterior horns visible from the lateral side. A thin membrane called the septum pellucidum separates the two lateral ventricles. The slender third ventricle in the diencephalon is connected to each lateral ventricle via a channel called the interventricular foramen.

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Related Experiment Video

Updated: Jan 8, 2026

Author Spotlight: A Single-Entry Point Endoscopic Intraventricular Approach for Third Ventriculostomy and Pineal Biopsy

Author Spotlight: A Single-Entry Point Endoscopic Intraventricular Approach for Third Ventriculostomy and Pineal Biopsy

Published on: June 28, 2024

Mastering third ventricle surgery through anatomical laboratory knowledge.

Luis Alberto Nuñez Del Arco Serrano¹, Héctor Osvaldo Hernández Velázquez¹, Francisco Javier Medina Anderson¹

¹Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, São Paulo-SP, Brazil.

Surgical Neurology International

|December 18, 2025

Summary

This summary is machine-generated.

Thorough third ventricle anatomy knowledge is vital for neurosurgery. Cadaveric dissection and specific surgical approaches minimize risks, improving patient outcomes for third ventricular tumors.

Area of Science:

Neurosurgery
Neuroanatomy

Background:

Understanding third ventricle anatomy is crucial for surgical planning in deep brain regions.
Variability in surrounding neurovascular structures impacts surgical approach and complication risks.

Keywords:

Bimanual interhemispheric transrostral approach Laboratory training Neuroanatomy Third ventricle surgery

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