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Encyclopedia > Arcuate nucleus (medulla)
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Gray's Fig. 695 - Transverse section of medulla oblongata below the middle of the olive. ("Nucleus arcuatus" visible near bottom right.)

In the medulla oblongata, the arcuate nucleus is a group of neurons located on the anterior surface of the medullary pyramids. They receive fibers from the corticospinal tract and send their axons through the external arcuate fibers and striae medullares to the cerebellum via the inferior cerebellar peduncle. Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ... The term, transverse means side-to-side as opposed to longitudinal which means front-to-back. In automotive engineering, the term, transverse refers to an engine in which the crankshaft is oriented side-to-side relative to the wheels of the vehicle. ... Position of medulla oblangata in the human brain The medulla oblongata is the lower portion of the brainstem. ... The arcuate nucleus is an aggregation of neurons in the mediobasal hypothalamus, adjacent to the third ventricle and the median eminence. ... Position of medulla oblangata in the human brain The medulla oblongata is the lower portion of the brainstem. ... Drawing by Santiago Ramón y Cajal of cells in the pigeon cerebellum. ... The corticospinal or pyramidal tract is a massive collection of axons that travel between the cerebral cortex of the brain, and the spinal cord. ... Figure 1a: A human brain, with the cerebellum in purple. ... Figure 1a: A human brain, with the cerebellum in purple. ...



Rhombencephalon (hindbrain)

MYELENCEPHALON: medulla oblongata, olivary body, arcuate nucleus of medulla, solitary nucleus, nucleus ambiguus Wikipedia does not have an article with this exact name. ... The myelencephalon is a developmental categorization of a portion of the central nervous system. ... Position of medulla oblangata in the human brain The medulla oblongata is the lower portion of the brainstem. ... In anatomy, the olivary bodies or simply olives (Latin oliva) are a pair of prominent oval structures in the medulla oblongata, the lower portion of the brainstem. ... The solitary nucleus and tract are structures in the brainstem that carry and receive visceral sensation and taste from the facial (VII), glossopharyngeal (IX), vagus (X) cranial nerves, as well as the cranial part of the accessory nerve (XI). ... The nucleus ambiguus is a cranial nerve nucleus, located in the medulla oblongata, and handles the branchial motor functions of the ninth (glossopharyngeal) and tenth (vagus) cranial nerves. ...


METENCEPHALON: cerebellum (arbor vitae, cerebellar vermis), pons (pontine nuclei, fourth ventricle, obex, median aperture, paramedian pontine reticular formation, locus ceruleus, abducens nucleus) The metencephalon is a developmental categorization of portions of the central nervous system. ... Figure 1a: A human brain, with the cerebellum in purple. ... The arbor vitae (Tree of Life) refers to the cerebellar white matter, so called for its branched, tree-like appearance. ... Part of the structure of animal brains, the cerebellar vermis is a narrow, wormlike structure between the hemispheres of the cerebellum. ... Position of the pons in the human brain The pons (sometimes pons Varolii after Costanzo Varolio) is a knob on the brain stem. ... The pontine nuclei are a part of the pons which store the memory of intention during motor activity. ... The fourth ventricle is one of the four connected fluid-filled cavities within the human brain. ... IrOBEX (or just OBEX) is a communications protocol that facilitates the exchange of binary objects between devices. ... The Median Aperture of the brain (apertura medialis ventriculi quarte) or Foramen of Magendie is an opening in the hollow nerve tube, connecting the 4th ventricle of the brain with the subarachnoid space The median aperture along with the paired lateral apertures (foramina of Luschka) are the primary routes for... The Locus ceruleus, also spelled locus coeruleus, (Latin for the blue bit) is a nucleus in the brain stem (under the cerebellum in the caudal midbrain/rostral pons) apparently responsible for the physiological reactions involved in stress and panic. ... The abducens nucleus is the originating nucleus from which the abducens nerve emerges. ...


 
 

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