Brainstem: brain stem [TA] Originally, the entire unpaired subdivision of the brain, composed of (in anterior sequence) the rhombencephalon, mesencephalon, and diencephalon as distinguished from the brain's only paired subdivision, the telencephalon. More recently, the term's connotation has undergone several arbitrary modifications: some use it to denote no more than rhombencephalon plus mesencephalon, distinguishing that complex from the prosencephalon (diencephalon plus telencephalon); others restrict it even further to refer exclusively to the rhombencephalon. From both developmental and architectural viewpoints, the original interpretation seems preferable. SYN: truncus encephali [TA].
Source: Stedman's Medical Spellchecker, © 2006 Lippincott Williams & Wilkins. All rights reserved.
Brainstem: The part of the brain that is connected to the spinal cord.
Source: National Institute of Health
Brainstem: the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus.
Source: WordNet 2.1
Brainstem: axial portion of the brain exclusive of the cerebellum and the forebrain; includes midbrain, medulla, and pons.
Source: CRISP
Brainstem: The part of the brain that connects the cerebral hemispheres with the spinal cord. It consists of the MESENCEPHALON, PONS, and MEDULLA OBLONGATA.
Source: MESH OBO (Open Biomedical Ontologies)
Brainstem: The part of the brain that connects the cerebral hemispheres with the spinal cord. It consists of the MESENCEPHALON; PONS; and MEDULLA OBLONGATA.
Source: MeSH 2007
Brainstem (organ): The brain stem is the portion of the brain that controls such vital functions as heartbeat, breathing, blood pressure, pain sensitivity, and plays a role in alertness and consciousness. The brain stem is located at the lowest area of the brain and contains nerve fibers that connect the brain and all of its functions to the spinal cord and the rest of the body. In addition, cranial nerves 3 through 12 arise from the brain stem.
The brain stem is divided into the medulla oblongata, pons, and the midbrain. Conditions that can afflict the brain stem include brain stem infarction, Athabaskan brain stem dysgenesis, trauma, genetic diseases, birth defects, infection, and brain stem lesions.
Brainstem (organ): The brain stem connects the brain with the spinal cord. It controls hunger and thirst and some of the most basic body functions, such as body temperature, blood pressure, and breathing. (Source: excerpt from What You Need To Know About Brain Tumors: NCI)
Brainstem (organ): See Brainstem (organ information).
More information on organs: Brainstem:
Source - WordNet 2.1
Source - MeSH OBO (Open Biomedical Ontologies)
Source - MeSH 2007
Source - CRISP
Source - MeSH 2007
Source - CRISP
Source - WordNet 2.1
The following list attempts to classify Brainstem into categories where each line is subset of the next.
Source: WordNet 2.1
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