Taenia of fourth ventricle

Taenia of fourth ventricle

The taenia of the fourth ventricle is a narrow band of white matter located in the brain. It is part of the ventricular system and plays a role in the structure and function of the fourth ventricle, which is one of the four connected fluid-filled cavities within the brain.

Anatomy

The taenia of the fourth ventricle is situated along the lateral margins of the fourth ventricle. It is closely associated with the choroid plexus, which produces cerebrospinal fluid (CSF). The taenia is a continuation of the taenia fornicis and extends to the obex, a region at the lower end of the fourth ventricle.

Function

The primary function of the taenia of the fourth ventricle is to support the choroid plexus and contribute to the production and circulation of cerebrospinal fluid. The CSF produced in the fourth ventricle flows through the cerebral aqueduct into the third ventricle and then into the lateral ventricles, eventually circulating around the brain and spinal cord.

Clinical Significance

Any abnormalities or lesions in the taenia of the fourth ventricle can affect the production and flow of cerebrospinal fluid, potentially leading to conditions such as hydrocephalus. Proper functioning of the taenia is essential for maintaining the balance and pressure of CSF within the central nervous system.

Related Structures

• Fourth ventricle
• Choroid plexus
• Cerebrospinal fluid
• Ventricular system
• Obex
• Cerebral aqueduct
• Third ventricle
• Lateral ventricles

See Also

• Brain
• Central nervous system
• Neuroanatomy