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۲۴years of life without cerebellum

 
 

A 24-year-old woman was repeatedly hospitalized for dizziness and inability to walk. All members of his family were healthy and had no history of neurological disorders. Magnetic resonance angiography showed no posterior inferior artery and cerebellar arteries on either side. Emission stress imaging showed that no fibers entered the cerebellum. A large cavity without cerebrospinal fluid was observed. The woman had lived two decades without having an important part of her brain, the cerebellum. He had not been able to move on his feet until he was 4 years old and had never been able to walk in a balanced way. He stuttered a little while speaking. The brain is much more flexible or adaptable in the face of abnormalities at an early age. When a person is born with a disorder or loses a part of the brain at an early age, the rest of the brain tries to communicate with each other and make up for the lack or absence of that part. This ability is significantly limited by age. A 60-year-old person becomes severely disabled if he loses his cerebellum. The massive expansion of the vertebrate nervous system becomes an adult through the growth of the first small appendage, which is accompanied by extensive rearrangement of its constituent cells and cell migration in long, tortuous paths. The cerebellum is made up of a limited set of recognizable cells that are readily available through genetic tools. In cerebellar tissue formation, separate migrations occur, the morphological and molecular details of which are remarkable

The cerebellum is literally a Latin word meaning small brain. The cerebellum has long been called the silent region of the brain, because the electrical stimulation of this structure does not produce any emotion. The cerebellar region occupies 10% of the total volume of the brain and houses about 50% of the nerves in the brain

The cerebellum is covered by a tent. The cerebellar canopy is an extension of the sternum that lies between the cerebellum and the brainstem, separating the two from the posterior lobes of the cerebellum and forming a strong membrane arch. The cerebellum of the cerebellum was an arched lamina that rises in the middle and slopes downward all around. It covers the upper surface of the cerebellum and supports the occipital lobes of the brain.
The surface of the cerebellum has a large number of transverse grooves located between narrow folds. These folds are called foil-shaped sheets

Cerebellar lobes
The cerebellum has three main lobes: 1- Anterior lobe 2- Posterior lobe 3- Flocculonodular lobe On the upper surface, there is a deep groove called the primary groove, which is the border between the anterior and posterior lobes. The anterior lobe is in front of the groove. Cerebellum remains on both the upper and lower levels. Forms the posterior lobe. A groove called the horizontal groove in the posterior lobe roughly divides the cerebellum into upper and lower halves
Cerebellar segmentation
The ancient cerebellum Archcerebellum develops and communicates with the vestibular nuclei. It is well developed in fish and in humans includes the flocculonodular lobes and lingula
The old Paleocerenellum cerebellum is characterized by the evolution of terrestrial vertebrates that needed organs to protect the body from gravity, so it has more to do with the spinal cord and is related to muscle tone and movement and maintaining body position and other movements. This area includes the perineal and adjacent areas of the cornea from the anterior lobe of the uvula and the pyramid from the lower lobe. It is associated with the nuclei of fascia and globus embolism
The new cerebellum Neocerebellum covers the cerebellar hemispheres and covers most parts of the posterior lobe (uvula and pyramid) and is the largest part of the cerebellum. This section is related to the control of learned activities and its size has increased in parallel with the brain nicotine. Communicates with the serrated core
Vermis vermis
The cerebellum has two lateral hemispheres connected by a middle part called the cornea. The upper vermis forms a slight protrusion extending forward to form the lingula. This part of the upper vermis is located on the upper medullary membrane. The upper vermis divides anteriorly to posteriorly into: lingula, lobule, central, coleman, declio, and folium
Compared to the upper vermis, the lower vermis are easier to distinguish from the hemispheres because they are located at the bottom of the cerebellum. The lower vermis is divided by grooves into sections called front to back: node, small tongue, pyramid, tuber. On either side of the nodule, a stem extends to the sides and terminates in a small lobule, called the flocculonodular lobe. The lobule tonsil is relatively separate, located on either side of the inferior vermis

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