METENCEPHALON/CEREBELLUM: cerebellar vermis, flocculus, arbor vitae eMedicine is an online clinical medical knowledge base that was founded in 1996. ... A sketch of the human brain by artist Priyan Weerappuli, imposed upon his sketch of the profile of Michaelangelos David In animals, the brain, or encephalon (Greek for in the head), is the control center of the central nervous system. ... Wikipedia does not have an article with this exact name. ... The myelencephalon is a developmental categorization of a portion of the central nervous system. ... The medulla oblongata is the lower portion of the brainstem. ... Grays Fig. ... 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 hypoglossal nucleus extends the length of the medulla, and being a motor nucleus, is close to the midline. ... The nucleus ambiguus (literally ambiguous nucleus) is a region of histologically disparate cells located just dorsal (posterior) to the inferior olivary nucleus in the lateral portion of the upper (rostral) medulla. ... In anatomy, the olivary bodies or simply olives (Latin oliva and olivae, singular and plural, respectively) are a pair of prominent oval structures in the medulla oblongata, 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. ... Cuneate nucleus is a wedge-shaped nucleus in the medulla. ... The accessory cuneate nucleus is located lateral to the cuneate nucleus in the medulla oblongata at the level of the sensory decussation (the crossing fibers of the posterior column/medial lemniscus tract). ... Located in the medulla oblongata, the gracile nucleus is one of the dorsal column nuclei that participates in the sensation of fine touch and proprioception. ... The inferior salivatory nucleus is one of the components of the glossopharyngeal nerve, which stimulates secretion from the parotid gland. ... The raphe nuclei (Latin for the bit in a fold or seam) is a moderately sized cluster of nuclei found in the brain stem, and releases serotonin to the rest of the brain. ... The nucleus raphe obscurus, despite the implications of its name, has some very specific functions and connections of afferent and efferent nature. ... The nucleus raphe magnus, located directly rostral to the raphe obscurus, is afferently stimulated from axons in the spinal cord and cerebellum. ... The nucleus raphe pallidus receives afferent connections from the periaqueductal gray, the paraventricular hypothalamic nucleus, central nucleus of the amygdala, lateral hypothalamic area, and parvocellular reticular nucleus. ... The Area postrema is a part of the brain. ... The posterior nucleus of vagus nerve (or dorsal motor nucleus of vagus) is a cranial nerve nucleus for the vagus nerve that arises from the floor of the fourth ventricle. ... The reticular formation is a part of the brain which is involved in stereotypical actions, such as walking, sleeping, and lying down. ... A nucleus of the medulla oblongata involved with co-ordinating baroreceptor signals to control arterial blood pressure. ... The metencephalon is a developmental categorization of portions of the central nervous system. ... Figure 1a: A human brain, with the cerebellum in purple. ... Part of the structure of animal brains, the cerebellar vermis is a narrow, wormlike structure between the hemispheres of the cerebellum. ... The arbor vitae (Latin for Tree of Life) is the cerebellar white matter, so called for its branched, tree-like appearance. ...

METENCEPHALON/PONS: pontine tegmentum, superior salivary nucleus, trapezoid body, pontine nuclei (superior olivary nucleus, trigeminal nerve nuclei, abducens nucleus, facial motor nucleus, cochlear nuclei, vestibular nuclei), locus ceruleus, paramedian pontine reticular formation, median raphe nucleus - reticular formation (caudal pontine reticular nucleus, oral pontine reticular nucleus, tegmental pontine reticular nucleus) The metencephalon is a developmental categorization of portions of the central nervous system. ... 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 tegmentum is a part of the pons of the brain involved in the initiation of REM sleep. ... The Superior salivary nucleus (or superior salivatory nucleus) of the facial nerve is a visceromotor cranial nerve nucleus located in the pontine tegmentum. ... The trapezoid body is part of the acoustic pathway. ... The pontine nuclei are a part of the pons which store the memory of intention during motor activity. ... // Anatomy The superior olivary nucleus (or superior olive) is a small mass of gray substance situated on the dorsal surface of the lateral part of the trapezoid body. ... The sensory trigeminal nerve nucleus is the largest of the cranial nerve nuclei, and extends through the whole of the brainstem, midbrain to medulla. ... The abducens nucleus is the originating nucleus from which the abducens nerve emerges - a cranial nerve nucleus. ... The facial motor nucleus is a collection of neurons in the brainstem that belong to the facial nerve (cranial nerve VII). ... The cochlear nuclei consist of: (a) the lateral cochlear nucleus, corresponding to the tuberculum acusticum on the dorso-lateral surface of the inferior peduncle; and (b) the ventral or accessory cochlear nucleus, placed between the two divisions of the nerve, on the ventral aspect of the inferior peduncle. ... The nuclei of the vestibular nerve. ... The Locus ceruleus, also spelled locus caeruleus or locus coeruleus (Latin for the blue spot), is a nucleus in the brain stem responsible for physiological responses to stress and panic. ... The paramedian pontine reticular formation, or PPRF, is a brain region, without clearly defined borders, in the center of the pons. ... The reticular formation is a part of the brain which is involved in stereotypical actions, such as walking, sleeping, and lying down. ... The caudal pontine reticular nucleus is composed of gigantocellular neurons. ...

FOURTH VENTRICLE: obex, median aperture 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...