4th ventricle

4th Ventricle

The 4th ventricle is one of the four connected fluid-filled cavities within the human brain. These cavities, known collectively as the ventricular system, are part of the central nervous system that produces and circulates cerebrospinal fluid.

Anatomy

The 4th ventricle is located within the pons and medulla oblongata, two structures found in the brainstem. It is shaped like a tent, with its roof formed by the cerebellum and its floor by the dorsal surfaces of the pons and upper half of the medulla oblongata.

Function

The primary function of the 4th ventricle, like the other ventricles in the brain, is to produce and circulate cerebrospinal fluid. This fluid serves several critical functions, including providing buoyancy to the brain, delivering nutrients, and removing waste products.

Clinical Significance

Conditions that affect the 4th ventricle can have serious neurological implications. For example, hydrocephalus can occur if the flow of cerebrospinal fluid is blocked within the ventricular system. Other conditions, such as brain tumors, can also affect the 4th ventricle.

See Also

• Cerebrospinal fluid
• Hydrocephalus
• Brain tumor
• Ventricular system
• Central nervous system