Inferior medullary velum
Inferior Medullary Velum
The Inferior Medullary Velum is a thin layer of neural tissue that forms part of the anatomy of the human brain. It is located within the fourth ventricle, a fluid-filled cavity in the brain, and is part of the cerebellum, the region of the brain responsible for coordinating voluntary movements.
Structure[edit | edit source]
The Inferior Medullary Velum is a thin, translucent membrane that stretches across the fourth ventricle. It is attached to the inferior cerebellar peduncle, a bundle of nerve fibers that connect the cerebellum to the brainstem. The velum forms the lower boundary of the fourth ventricle, separating it from the underlying medulla oblongata, a part of the brainstem that controls vital functions such as heart rate and breathing.
Function[edit | edit source]
The primary function of the Inferior Medullary Velum is to regulate the flow of cerebrospinal fluid (CSF) within the fourth ventricle. CSF is a clear, colorless fluid that surrounds the brain and spinal cord, providing protection and nutritional support. The velum acts as a kind of 'valve', controlling the amount of CSF that can enter and leave the ventricle.
Clinical significance[edit | edit source]
Abnormalities of the Inferior Medullary Velum can lead to a number of neurological conditions. For example, a tumor or other mass in this area can block the flow of CSF, leading to a condition known as hydrocephalus, which is characterized by an excessive accumulation of CSF in the brain. This can cause a range of symptoms, including headaches, nausea, vomiting, and cognitive difficulties.
See also[edit | edit source]
References[edit | edit source]
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Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.Contributors: Prab R. Tumpati, MD