| 词汇 | hypothalamus |
| 释义 | hypothalamus noun[ S ] anatomy specializeduk /ˌhaɪ.pəʊˈθæl.ə.məs/ us /ˌhaɪ.poʊˈθæl.ə.məs/ a small part in the brain that controls things such as body temperature and the release of hormones, that is below the thalamus下丘脑（大脑的一个小部分，位于丘脑下面，控制体温、荷尔蒙分泌等） The brain & nervous system abducens nerve abducent nerve accessory nerve alexithymia allism glossopharyngeal nerve grey matter hemispheric hemispherical hindbrain neurofibrillary neurogenic neurogenically neuroglia neuroglial reinnervation reticular formation rhinencephalon rhombencephalon right brain hypothalamus | American Dictionaryhypothalamus noun[ Cusually sing ] us/ˌhɑɪ·pəˈθæl·ə·məs/ biology a small part in the front of the brain that controls body temperature and tells your body if you are hungry or need a drink of water Examples of hypothalamushypothalamus The resulting kinetics varied in form, especially in the hypothalamus, which was the earliest area to show the highest differences compared to controls. Anterior portions of the hypothalamus (preoptic area and adjacent basal forebrain) are known to be essential to sleep. There are direct connections from the amygdala to the brain stem areas that control autonomic states and indirect connections through the hypothalamus. We will review the recent data and suggest instead that the hypothalamus is the primary regulator of states of consciousness. The osmoreceptors in the hypothalamus are reset to maintain a low plasma osmolality. Relevant circuitry again interconnects processing systems with the orbital frontal, limbic (amygdala and hypothalamus), and brainstem (periaqueductal gray) regions. Through the mediation of the hypothalamus and the pituitary gland, a series of morphological changes overtakes the little creature. Stress increases brain-derived neurotropic factor messenger-ribonucleic-acid in the hypothalamus and pituitary. Fetuses of different species vary in the response of their body weight to removal of the hypothalamus. The first is the hypothalamus, a structure above the midbrain controlling homeostasis. It is present in brain stem nuclei, nucleus accumbens, amygdala, hypothalamus, and cerebral cortex. Maternally deprived rats had decreased numbers of glucocorticoid receptors, as measured by dexamethasone binding, in the hippocampus, hypothalamus and frontal cortex. In these pathways, serotonin may be involved in integrating visceral satiety signals for relay to the hypothalamus. The hypothalamus receives afferent neurones from the skin and abdominal viscera, carrying information about the relative temperature of the various organs. These are organized at the diencephalic level in the hypothalamus, often described as the body's master control center. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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