Lateral aperture

The lateral aperture is a paired structure in human anatomy. It is an opening in each lateral extremity of the lateral recess of the fourth ventricle of the human brain. Along with the single median aperture, the two lateral aperatures provide a conduit for cerebrospinal fluid to flow from the brain's ventricular system into the subarachnoid space. The structure is also called the lateral aperture of the fourth ventricle or the foramen of Luschka after anatomist Hubert von Luschka.