Lateral aperture

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Lateral aperture (also known as foramen of Luschka) is one of the two openings in the fourth ventricle of the brain, the other being the median aperture. These apertures allow cerebrospinal fluid to exit the ventricular system and enter the subarachnoid space.

Etymology[edit | edit source]

The lateral aperture is named after the German anatomist, Hubert von Luschka, who first described it in the mid-19th century.

Anatomy[edit | edit source]

The lateral aperture is located in the lateral recess of the fourth ventricle, near the cerebellum. It is one of the three openings in the fourth ventricle, the other two being the median aperture (also known as the foramen of Magendie) and the central canal. The lateral and median apertures are collectively known as the foramina of Luschka and Magendie.

Function[edit | edit source]

The primary function of the lateral aperture is to allow the passage of cerebrospinal fluid (CSF) from the fourth ventricle into the subarachnoid space. This is a crucial part of the CSF circulation pathway, which helps to protect the brain and spinal cord from injury, supply nutrients, and remove waste products.

Clinical significance[edit | edit source]

Blockage or obstruction of the lateral aperture can lead to a condition known as hydrocephalus, which is characterized by an excessive accumulation of CSF in the brain. This can cause increased intracranial pressure and can lead to symptoms such as headache, nausea, vomiting, and in severe cases, can be life-threatening.

See also[edit | edit source]

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