![]() "Isolated rhomboencephalosynapsis – a rare cerebellar anomaly". Paprocka, Justyna Jamroz, Ewa Ścieszka, Ewa Kluczewska, Ewa (2012)."Normal IQ in a 55-year-old with newly diagnosed rhombencephalosynapsis". Bell, B Stanko, H Levine, R (July 2005).From the primary vesicles arise five second-ary vesicles. European Journal of Paediatric Neurology. The most anterior vesicle constitutes the prosencephalon or forebrain, the central vesicle forms the mes-encephalon or midbrain, and the most posterior vesicle forms the rhombencephalon or hindbrain. It is one of the three major developmental. The hindbrain coordinates functions that are fundamental to survival, including respiratory rhythm, motor activity, sleep, and wakefulness. "Cognitive outcome in children with rhombencephalosynapsis". hindbrain, also called rhombencephalon, region of the developing vertebrate brain that is composed of the medulla oblongata, the pons, and the cerebellum. Poretti, Andrea Alber, Fabienne Dietrich Bürki, Sarah Toelle, Sandra P."Persistent figure-eight and side-to-side head shaking is a marker for rhombencephalosynapsis: Persistent Head Shaking". "Rhombencephalosynapsis: a hindbrain malformation associated with incomplete separation of midbrain and forebrain, hydrocephalus and a broad spectrum of severity". International Journal of Developmental Biology. ![]() "The origin and evolution of the nervous system". ^ a b Ghysen, Alain (1 December 2003).^ "Brain: Parts & functions (Fore, mid & hind)".It also plays an important role in motor movement, pain, and the sleep/wake cycle. The disorder is a main feature of Gomez-Lopez-Hernandez syndrome. The midbrain functions as a relay system, transmitting information necessary for vision and hearing. Hindbrain diseases Ī rare brain disease of the cerebellum is rhombencephalosynapsis characterized by an absent or partially formed vermis. It has been suggested that the hindbrain first evolved in the Urbilaterian-the last common ancestor of chordates and arthropods-between 570 and 555 million years ago. The hindbrain is homologous to a part of the arthropod brain known as the sub-oesophageal ganglion, in terms of the genes that it expresses and its position in between the brain and the nerve cord. The myelencephalon forms the medulla oblongata in the adult brain it contains: Rhombomeres Rh8-Rh4 form the myelencephalon. and a portion of the vestibulocochlear nerve (CN VIII). Key Terms pons: Contains nuclei that relay signals from the forebrain to the cerebellum, along with nuclei that deal primarily with sleep, respiration, swallowing, bladder control, hearing, equilibrium, taste, eye movement, facial expressions, facial sensation, and posture.a portion of the fourth (IV) ventricle,.The metencephalon is composed of the pons and the cerebellum it contains: ![]() Rhombomeres Rh3-Rh1 form the metencephalon. Together they support vital bodily processes. It includes the medulla, pons, and cerebellum. The hindbrain or rhombencephalon or lower brain is a developmental categorization of portions of the central nervous system in vertebrates. ![]()
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