brainstem — [brān′stem΄] n. a stalklike structure at the base of the brain that connects the spinal cord with the cerebrum and includes the medulla oblongata, pons, and midbrain: also written brain stem … English World dictionary
brainstem — /brayn stem /, n. the portion of the brain that is continuous with the spinal cord and comprises the medulla oblongata, pons, midbrain, and parts of the hypothalamus, functioning in the control of reflexes and such essential internal mechanisms… … Universalium
brainstem — UK [ˈbreɪnˌstem] / US noun [countable] Word forms brainstem : singular brainstem plural brainstems medical the part of the brain above the spinal cord between the left and right halves of the brain … English dictionary
Brainstem auditory hallucinosis — A term used to denote a hallucinatory state characterized by * auditory hallucinations which are attributed to aberrant neurophysiological activity in the brainstem. The concept of brain stem auditory hallucinosis is analogous to that of *… … Dictionary of Hallucinations
Brainstem glioma — A brainstem glioma is a glioma tumor in the brainstem.External links* [http://www.emedicine.com/NEURO/topic40.htm Brainstem glioma information on Emedicine] … Wikipedia
Brainstem auditory evoked potentials — Auditory evoked potentials (AEPs) are a subclass of Event related potentials (ERPs). For AEPs, the event is a sound. AEPs (and ERPs) are very small electrical voltage potentials originating from the brain recorded from the scalp in response to an … Wikipedia
brainstem auditory evoked potential — (BAEP) that portion of the auditory evoked potential which comes from the brainstem; abnormalities can be analyzed to evaluate comas, to support diagnosis of multiple sclerosis, and to detect early posterior fossa tumors. Brainstem auditory… … Medical dictionary
brainstem encephalitis — any of various symptoms caused by dysfunction of cranial nerves owing to a lesion in the brainstem, most often a paraneoplastic effect of lung or other types of cancer; manifestations may include oculomotor signs, hearing loss, dysarthria,… … Medical dictionary
brainstem glioma — a heterogeneous group that includes gliomas anywhere in the brainstem; they are seen mainly in children and cause neuropathy with motor symptoms and problems of gait, speech, and swallowing. The diffuse, intrinsic type is difficult to treat and… … Medical dictionary
brainstem reflexes — reflexes regulated at the level of the brainstem, such as pupillary, pharyngeal, and cough reflexes and the control of respiration. Their prolonged absence is one criterion of brain death … Medical dictionary
