| 释义 |
limbic system
limbic systemn. A group of interconnected deep brain structures common to all mammals, including the hippocampus and amygdala, involved in olfaction, emotion, motivation, behavior, and various autonomic functions. limbic system (ˈlɪmbɪk) n (Anatomy) the part of the brain bordering on the corpus callosum: concerned with basic emotion, hunger, and sex[C19 limbic, from French limbique, from limbe limbus, from New Latin limbus, from Latin: border]lim′bic sys`tem
n. a group of structures in the brain that include the hippocampus, olfactory bulbs, hypothalamus, and amygdala and are associated with emotion and homeostasis. [1950–55] limbic system - From Latin limbus, "edge," it is the network of the brain involving areas near the edge of the cortex and controls the basic emotions and drives.See also related terms for network.limbic systemPart of the forebrain encircling the brain stem and largely involved in emotional responses.Thesaurus| Noun | 1. |  limbic system - a system of functionally related neural structures in the brain that are involved in emotional behaviorlimbic brain, visceral braintrigonum cerebrale, fornix - an arched bundle of white fibers at the base of the brain by which the hippocampus of each hemisphere projects to the contralateral hippocampus and to the thalamus and mamillary bodiesneural structure - a structure that is part of the nervous systemamygdala, amygdaloid nucleus, corpus amygdaloideum - an almond-shaped neural structure in the anterior part of the temporal lobe of the cerebrum; intimately connected with the hypothalamus and the hippocampus and the cingulate gyrus; as part of the limbic system it plays an important role in motivation and emotional behaviorhippocampus - a complex neural structure (shaped like a sea horse) consisting of grey matter and located on the floor of each lateral ventricle; intimately involved in motivation and emotion as part of the limbic system; has a central role in the formation of memoriescingulate gyrus, gyrus cinguli - a long curved structure on the medial surface of the cerebral hemispheres; the cortical part of the limbic system |
TranslationsLimbic System
limbic system[′lim·bik ‚sis·təm] (anatomy) The inner edge of the cerebral cortex in the medial and temporal regions of the cerebral hemispheres. Limbic System rhinencephalon, a group of sections of the brain that are unified by anatomic (spatial intercommunication) and functional (physiological) characteristics. The major part of the system consists of structures of the hippocampal gyrus, a series of successively connected brain formations that form a closed cycle and are connected to the paleopallium, archipallium, and neopallium (all located predominantly on the inner surface of the hemispheres) and to subcortical formations. The limbic system participates in olfactory function and in regulating the activity of the body’s visceral systems; when different areas of the limbic system are stimulated electrically, changes can be observed in the operation of the various internal organs, such as the heart, the vessels, and the gastrointestinal tract. However, the principal function of the limbic system is associated with autoregulatory processes in the organization of behavior and mental activity. The system is responsible for the instinctual behavior associated with the satisfaction of innate organic requirements, such as self-preservation, food gathering, eating and drinking, sexual behavior, and the rearing of offspring. The limbic system also has an important role in the organization of acquired forms of behavior; this is associated with the system’s special role in emotional reaction, the processes of memory, and the regulation of the states of wakefulness and sleeping. By stimulating or destroying various areas of the limbic system, one can produce or eliminate emotions, such as fear or rage. In experiments with autostimulation, in which an animal can, by pressing a pedal, repeatedly (up to 8,000 times an hour) stimulate certain structures of the limbic system through implanted electrodes, there arises an expressed sensation of satisfaction (the positive reinforcement of an action). Upon the introduction of electrodes to other structures, the animal is observed to avoid such autostimulation, because of the appearance of a feeling of dissatisfaction (negative reinforcement). The role of the limbic system has been elucidated in the processes of memory in which there is a transfer of traces of acquired experience from short-term to long-term memory. In man, bilateral damage to the limbic system (for example, by brain tumors and certain intoxications, such as with alcohol) leads to an impairment of the function and a loss of memory for new occurrences (called Korsakoff’s syndrome). Such damage may also result in emotional disturbances. Different parts of the limbic system participate to different degrees in various brain functions. However, all of the basic functions and structures are closely interconnected, and, taken together, they ensure in integral brain activity (motor, perceptive, cognitive) the active, purposeful character of a given action. REFERENCESStruktura i funktsiia arkhipaleokorteksa. Moscow, 1968. (Gagrskie besedy, vol. 5.)
Fiziologiia i patofiziologiia limbiko-retikuliarnoi sistemy. Moscow, 1971.
Structure and Function of the Limbic System. Amsterdam-London-New York, 1967. (Progress in Brain Research, vol. 27.)
Karli, P. “Système limbique et processus de motivation.” In Association des physiologistes. Paris, 1968. (Journal de physiologic vol. 60, supplement 1.)L. P. LATASH limbic system
system [sis´tem] 1. a set or series of interconnected or interdependent parts or entities (objects, organs, or organisms) that act together in a common purpose or produce results impossible by action of one alone. 2. an organized set of principles or ideas. adj., adj systemat´ic, system´ic.
The parts of a system can be referred to as its elements or components; the environment of the system is defined as all of the factors that affect the system and are affected by it. A living system is capable of taking in matter, energy, and information from its environment (input), processing them in some way, and returning matter, energy, and information to its environment as output.
An open system is one in which there is an exchange of matter, energy, and information with the environment; in a closed system there is no such exchange. A living system cannot survive without this exchange, but in order to survive it must maintain pattern and organization in the midst of constant change. Control of self-regulation of an open system is achieved by dynamic interactions among its elements or components. The result of self-regulation is referred to as the steady state; that is, a state of equilibrium. homeostasis is an assemblage of organic regulations that act to maintain steady states of a living organism.
A system can be divided hierarchically into subsystems, which can be further subdivided into sub-subsystems and components. A system and its environment could be considered as a unified whole for purposes of study, or a subsystem could be studied as a system. For example, the collection of glands in the endocrine system can be thought of as a system, each endocrine gland could be viewed as a system, or even specific cells of a single gland could be studied as a system. It is also possible to think of the human body as a living system and the endocrine system as a subsystem. The division of a system into a subsystem and its environment is dependent on the perspective chosen by the person studying a particular phenomenon. Systems, subsystems, and suprasystems. Within the environment there are suprasystems, such as human society, and systems within the suprasystem, such as the educational and industrial systems and the health care delivery system. Within the health care delivery system are subsystems, such as the patient, family members, the nurse, the physician, and allied health care professionals and paraprofessionals.alimentary system digestive system.apothecaries' system see apothecaries' system" >apothecaries' system.autonomic nervous system see autonomic nervous system.avoirdupois system see avoirdupois system" >avoirdupois system.behavioral system in the behavioral system model of nursing, the patterned, repetitive, and purposeful behaviors of an individual.cardiovascular system the heart and blood vessels, by which blood is pumped and circulated through the body; see also circulatory system.CD system (cluster designation) a system for classifying markers" >cell-surface markers expressed by lymphocytes based on a computer analysis of monoclonal antibodies against hla antigens, with antibodies having similar specificity characteristics being grouped together and assigned a number (CD1, CD2, CD3, etc.); these CD numbers are also applied to the specific antigens recognized by the various groups of monoclonal antibodies. See also antigen" >CD antigen.centimeter-gram-second system (CGS) (cgs) a system of measurements in which the units are based on the centimeter as the unit of length, the gram as the unit of mass, and the second as the unit of time.central nervous system see central nervous system.centrencephalic system the neurons in the central core of the brainstem from the thalamus to the medulla oblongata, connecting the hemispheres" >cerebral hemispheres.circulatory system see circulatory system.client system in the general systems framework and theory of goal attainment" >general systems framework and theory of goal attainment, the composite of physiological, psychological, sociocultural, and developmental variables that make up the total person.colloid system (colloidal system) colloid (def. 3).conduction system (conductive system (of heart)) the system of atypical cardiac muscle fibers, comprising the sinoatrial and atrioventricular nodes, internodal tracts, atrioventricular bundle, bundle branch, and terminal ramifications into the Purkinje network.digestive system see digestive system.Emergency Medical Services (EMS) system a comprehensive program designed to provide services to the patient in the prehospital setting. The system is activated when a call is made to the EMS operator, who then dispatches an ambulance to the patient. The patient receives critical interventions and is stabilized at the scene. A communication system allows the health care workers at the scene to contact a trauma center for information regarding further treatment and disposition of the patient, followed by transportation of the patient to the most appropriate facility for treatment.endocrine system the system of ductless glands and other structures that produce internal secretions (hormones) that are released directly into the circulatory system, influencing metabolism and other body processes; see endocrine glands.environmental control system unit" >environmental control unit.expert system a set of computer programs designed to serve as an aid in decision making.extrapyramidal system see extrapyramidal system.gateway system a software interface between an online searcher and one or more search systems, facilitating the use of the system by searchers who are unfamiliar with it, or with online retrieval in general.genitourinary system the organs concerned with production and excretion of urine, together with the reproductive organs. (See Plates.) Called also urogenital system.haversian system a canal" >haversian canal and its concentrically arranged lamellae, constituting the basic unit of structure in compact bone (osteon).  Haversian system: Structures of compact and spongy bone with the central haversian canal surrounded by the lamellae. From Applegate, 2000.health care system see health care system.heterogeneous system a system or structure made up of mechanically separable parts, as an emulsion or suspension.His-Purkinje system the intraventricular conduction system from the bundle of His to the distal Purkinje fibers, which carries the impulse to the ventricles.Home Health Care Classification system see home health care classification system.homogeneous system a system or structure made up of parts that cannot be mechanically separated, as a solution.hypophyseoportal system (hypophysioportal system) (hypothalamo-hypophysial portal system) the venules connecting the hypothalamus with the sinusoidal capillaries of the anterior lobe of the pituitary gland; they carry releasing substances to the pituitary.immune system see immune system.interpersonal system in the general systems framework and theory of goal attainment, two or more individuals interacting in a given situation.lay health system a system comprising an informal referral network and sources of treatment outside the formal biomedical sources of health care; it includes individual consultation and information-seeking through significant others and peers concerning health behaviors, symptoms, and evaluation of treatment before, during, and after consultation with health care professionals.legal system in the omaha system, anything connected with law or its administration; it includes legal aid, attorney, courts, or Child Protective Services (CPS), and many other agencies and officials.limbic system a system of brain structures common to the brains of all mammals, comprising the phylogenetically old cortex (archipallium and paleopallium) and its primarily related nuclei. It is associated with olfaction, autonomic functions, and certain aspects of emotion and behavior.lymphatic system see lymphatic system.lymphoid system the lymphoid tissue of the body, collectively; it consists of primary (or central) lymphoid tissues, the bone marrow, and thymus, and secondary (or peripheral) tissues, the lymph nodes, spleen, and gut-associated lymphoid tissue (tonsils, Peyer's patches).lymphoreticular system the lymphoid and reticuloendothelial systems considered together; see also lymphoreticular disorders.metric system see metric system.mononuclear phagocyte system the group of highly phagocytic cells that have a common origin from stem cells of the bone marrow and develop circulating monocytes and tissue macrophages, which develop from monocytes that have migrated to connective tissue of the liver (kupffer's cells), lung, spleen, and lymph nodes. The term has been proposed to replace reticuloendothelial system, which includes some cells of different origin and does not include all macrophages.nervous system see nervous system.nursing system in the self-care model of nursing, all the actions and interactions of nurses and patients in nursing practice situations; nursing systems fall into three categories: wholly compensatory, partly compensatory, and supportive-educative.Omaha system see omaha system.oxygen delivery system a device that delivers oxygen through the upper airways to the lungs at concentrations above that of ambient air. There are two general types: the fixed performance or high flow type, which can supply all of the needs of a patient for inspired gas at a given fractional inspired oxygen; and the variable performance or low flow type, which cannot supply all of the patient's needs for oxygen and delivers fractional inspired oxygen that varies with ventilatory demand.parasympathetic nervous system see parasympathetic nervous system" >parasympathetic nervous system.peripheral nervous system the portion of the nervous system consisting of the nerves and ganglia outside the brain and spinal cord.personal system in the general systems framework and theory of goal attainment, the unified self, a complex whole that is rational, conscious, and feeling and that sets goals and decides on the means of achieving them.pituitary portal system hypothalamo-hypophysial portal system.portal system an arrangement by which blood collected from one set of capillaries passes through a large vessel or vessels and another set of capillaries before returning to the systemic circulation, as in the pituitary gland (the hypothalamo-hypophysial portal system) or the liver (the hepatic portal circulation).renin-angiotensin-aldosterone system see renin-angiotensin-aldosterone system.respiratory system the group of specialized organs whose specific function is to provide for the transfer of oxygen from the air to the blood and of waste carbon dioxide from the blood to the air. The organs of the system include the nose, the pharynx, the larynx, the trachea, the bronchi, and the lungs. See also respiration and Plates 7 and 8.reticular activating system see reticular activating system.reticuloendothelial system see reticuloendothelial system.safety system see safety system." >safety system.SI system see SI units.skeletal system see skeletal system.social system in the general systems framework and theory of goal attainment, an organized boundary system of social roles, behaviors, and practices developed to maintain balance for growth, development, and performance, which involves an exchange of energy and information between the person and the environment for regulation and control of stressors.support system in the omaha system, the circle of friends, family, and associates that provide love, care, and need gratification; it may include church, school, workplace, or other groupings.sympathetic nervous system see sympathetic nervous system.Unified Medical Language system see unified medical language system.Unified Nursing Language system see unified nursing language system.unit dose system a method of delivery of patient medications directly to the patient care unit. Following review by a nurse, a copy of the physician's original order is sent to the pharmacy, where the pharmacist reviews it again. The pharmacist then fills the order and delivers the medication to the patient care unit, usually in a 24-hour supply. Each patient has an individual supply of medications prepared and labeled by the pharmacist.urinary system the system formed in the body by the kidneys, ureters, urinary bladder, and urethra, the organs concerned in the production and excretion of urine.urogenital system genitourinary system.vascular system circulatory system.vasomotor system the part of the nervous system that controls the caliber of the blood vessels.lim·bic sys·temcollective term denoting a heterogeneous array of brain structures at or near the edge (limbus) of the medial wall of the cerebral hemisphere, in particular the hippocampus, amygdala, and fornicate gyrus; the term is often used so as to include also the interconnections of these structures, as well as their connections with the septal area, the hypothalamus, and a medial zone of mesencephalic tegmentum. By way of the latter connections, the limbic system exerts an important influence on the endocrine and autonomic motor systems; its functions also appear to affect motivational and mood states. Synonym(s): visceral brainlimbic systemn. A group of interconnected deep brain structures common to all mammals, including the hippocampus and amygdala, involved in olfaction, emotion, motivation, behavior, and various autonomic functions. limbic system Neurology The 'peripheral' component of the CNS, which is linked to the autonomic nervous system and carries out the non-motor and non-sensory aspects of cerebral function, including control of emotion, eating, drinking, sexual activity, other behaviors, olfaction Components Olfactory system, hippocampus, dentate nucleus, cingulate gyri, amygdalus, septum, fornicate gyrus, parts of the thalamus and hypothalamus and connections with the septum, hypothalamus, and medial mesencephalic tegmentum; the LS controls autonomic activity–eg, changes in BP and respirationlim·bic sys·tem (lim'bik sis'tĕm) Collective term denoting a heterogeneous array of brain structures at or near the edge (limbus) of the medial wall of the cerebral hemisphere, in particular the hippocampus, amygdala, and fornicate gyrus; the term is often used so as to include also the interconnections of these structures, as well as their connections with the septal area, the hypothalamus, and a medial zone of mesencephalic tegmentum. By way of the latter connections, the limbic system exerts an important influence on the endocrine and autonomic motor systems; its functions also appear to affect motivational and mood states.limbic system THE LIMBIC SYSTEM OF THE BRAINA group of brain structures, including the hippocampus, amygdala, dentate gyrus, cingulate gyrus, gyrus fornicatus, the archicortex, and their interconnections and connections with the hypothalamus, septal area, and a medial area of the mesencephalic tegmentum. The system is activated by motivated behavior and arousal, and it influences the endocrine glands and autonomic nervous system. See: illustrationlimbic system A centrally situated, ring-shaped structure in the brain consisting of a number of interconnected nerve cell nuclei. The limbic system represents much of what constitutes the brain in the lower mammals and is concerned with unconscious and automatic (autonomic) functions such as respiration, body temperature, hunger, thirst, wakefulness, sexual activity and their associated emotional reactions. Diseases of the limbic system cause emotional disturbances, and these can include emotional lability, forced or spasmodic laughing and crying, aggression, anger, violence, placidity, apathy, anxiety, fear, depression and diminished sexual interest.limbic system the HYPOTHALAMUS and the network of neurones which link it to the CEREBRAL CORTEX. The system is thought to be concerned with emotions and drives such as pleasure, hunger, thirst, pain, anger and sex, in vertebrate animals.Limbic systemA group of structures in the brain that includes the hypothalamus, amygdala, and hippocampus. The limbic system plays an important part in regulation of human moods and emotions. Many psychiatric disorders are related to malfunctioning of the limbic system.Mentioned in: Amnesia, Anxiety, Psychosurgerylim·bic sys·tem (lim'bik sis'tĕm) Collective term denoting a heterogeneous array of brain structures at or near the edge (limbus) of the medial wall of the cerebral hemisphere, in particular the hippocampus, amygdala, and fornicate gyrus. AcronymsSeeLSlimbic system
Synonyms for limbic systemnoun a system of functionally related neural structures in the brain that are involved in emotional behaviorSynonyms- limbic brain
- visceral brain
Related Words- trigonum cerebrale
- fornix
- neural structure
- amygdala
- amygdaloid nucleus
- corpus amygdaloideum
- hippocampus
- cingulate gyrus
- gyrus cinguli
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