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hypothalamus

The region of the brain that controls the autonomic nervous system and links the nervous and endocrine systems of the body. See hypothalamo–pituitary–adrenal axis.

hypothalamus

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A Dictionary of Biology (8 ed.)

Reference type:
Subject Reference
Current Version:
2019
Subject:
Science and technology, Life Sciences
Length:
173 words

...the paired clusters of neurons known as the suprachiasmatic nuclei within the hypothalamus. The hypothalamus synthesizes the hormones oxytocin and antidiuretic hormone, which are transported to the posterior pituitary, from where they are released into the bloodstream. Indeed, the endocrine functions of the hypothalamus are largely mediated by the pituitary gland , to which it is connected by a short stalk. The pituitary responds to releasing hormones produced by the hypothalamus, which thereby indirectly controls hormone production in other...

hypothalamus

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A Dictionary of Zoology (5 ed.)

Reference type:
Subject Reference
Current Version:
2020
Subject:
Science and technology, Life Sciences
Length:
58 words

... In vertebrates, the basal part of the diencephalon region of the brain , located beneath the thalamus . The hypothalamus controls the autonomic nervous system and thus regulates many processes, including the regulation of body temperature, sleeping and waking, and feeding and digestion. Through its secretion of hormone-like substances it also influences the pituitary...

hypothalamus

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A Dictionary of Biomedicine (2 ed.)

Reference type:
Subject Reference
Current Version:
2019

...hypothalamus The region of the brain that controls the autonomic nervous system and links the nervous and endocrine systems of the body. See hypothalamo–pituitary–adrenal axis ....

hypothalamus

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World Encyclopedia

Reference type:
Subject Reference
Current Version:
2004
Subject:
Encyclopedias
Length:
36 words

... Region at the base of the brain containing centres that regulate body temperature, fluid balance, hunger, thirst, and sexual activity. It is also involved in emotions, sleep, and the integration of hormone and nervous...

hypothalamus

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The Oxford Dictionary of Sports Science & Medicine (3 ed.)

Reference type:
Subject Reference
Current Version:
2007

... A small portion of the brain derived from the sides and floor of the forebrain. It is the main visceral control centre and is vitally important for homeostasis . It regulates the activity of the autonomic nervous system and a number of endocrine glands. It also contains centres of thermoregulation , ionic regulation, and osmoregulation. The hypothalamus is involved in many other autonomic functions, including the control of thirst, sleep, and hunger. It plays a role in regulating the metabolism of fats, carbohydrates, and proteins, and is also...

hypothalamus

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A Dictionary of Genetics (8 ed.)

Reference type:
Subject Reference
Current Version:
2014
Subject:
Science and technology, Life Sciences
Length:
88 words

... the floor and sides of the vertebrate brain just behind the attachment of the cerebral hemispheres. The hypothalamus controls the secretion of a variety of releasing hormones. These are transported down a closed portal system to the pituitary gland. Here, releasing hormones bind to receptors on cells in the anterior lobe. These cells then secrete hormones into the circulatory system that eventually bind to receptors in specific tissues. Hypothalamic releasing hormones include: prolactin-releasing factor, somatostatin, somatocrinin,...

hypothalamus

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The Oxford Companion to the Body

Reference type:
Subject Reference
Current Version:
2003
Subject:
Science and technology, Life Sciences
Length:
911 words

... cycles. Some cells of the hypothalamus detect changes in body temperature and chemistry, and participate directly in the control of our temperature and chemical balance. The hypothalamus, as its name implies, is situated below the thalamus — a huge collection of nuclei in the centre of the cerebral hemispheres. It forms part of the walls and floor of the central chamber of the cerebral ventricles , called the third ventricle . Hanging on a stalk underneath the hypothalamus is the pituitary gland. The hypothalamus receives many important sensory inputs,...

hypothalamus

hypothalamus   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
48 words

... ( pl. hypothalami ) the region of the vertebrate brain lying below the thalamus and around the floor of the third ventricle, just posterior to the attachment of the cerebral hemispheres. It lies just above the pituitary gland , to which it supplies various hypothalamic (regulatory) factors . —hypothalamic ...

hypothalamus

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A Dictionary of Nursing (7 ed.)

Reference type:
Subject Reference
Current Version:
2017
Subject:
Medicine and health
Length:
61 words

...hypothalamus [hy-poh- thal -ă-mŭs] n. the region of the forebrain in the floor of the third ventricle, linked with the thalamus above and the pituitary gland below. It contains several important centres controlling body temperature, thirst, hunger, and eating, water balance, and sexual function. It also functions as a centre for the integration of hormonal and autonomic nervous activity. —hypothalamic adj....

hypothalamus

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A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

... n . A fingernail-sized area of the diencephalon at the base of the brain in the limbic system, occupying the side walls and floor of the third ventricle, situated below both sides of the thalamus and above the pituitary gland, consisting of two halves with paired right and left nuclei, crucially involved in the regulation of the endocrine glands and the autonomic nervous system and implicated in the control of temperature, heart rate, blood pressure, hunger, thirst, sexual arousal, predatory aggression, and fight-or-flight responses. See ...

hypothalamus

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Concise Medical Dictionary (10 ed.)

Reference type:
Subject Reference
Current Version:
2020
Subject:
Medicine and health, Clinical Medicine
Length:
86 words

... n. the region of the forebrain in the floor of the third ventricle, linked with the thalamus above and the pituitary gland below ( see brain ). It contains several important centres controlling body temperature, thirst, hunger, and eating, water balance, and sexual function. It is also closely connected with emotional activity and sleep and functions as a centre for the integration of hormonal and autonomic nervous activity through its control of the pituitary secretions ( see neuroendocrine system ; pituitary gland ). — hypothalamic ...

ventromedial hypothalamus

ventromedial hypothalamus n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

...hypothalamus n . The lower middle part of each side of the hypothalamus , responsible for the feeling of satiation after eating, stimulation of which inhibits eating and destruction increases eating, also implicated in the control of anger and aggression. Also called the satiety centre . See also appestat . Compare lateral hypothalamic feeding centre . VMH abbrev . [From Latin ventris a belly + medialis situated in the middle, from medius the...

hypothalamus

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The New Oxford Dictionary for Scientific Writers and Editors (2 ed.)

Reference type:
Subject Reference
Current Version:
2009

... ( pl. hypothalami ) Anat. Adjectival form: hypothalamic...

hypothalamus

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New Oxford Rhyming Dictionary (2 ed.)

Reference type:
Subject Reference
Current Version:
2013
Subject:
Language reference
Length:
88 words

... • Lammas • Cadmus • Las Palmas • chiasmus , Erasmus • Nostradamus • famous , ignoramus, Seamus, shamus • Polyphemus , Remus • grimace • Michaelmas • Christmas , isthmus • litmus • animus , equanimous, magnanimous, pusillanimous, unanimous • anonymous , eponymous, Hieronymus, pseudonymous, synonymous • Septimus • Mimas , primus, thymus, timeous • Thomas • enormous , ginormous • brumous , hummus, humous, humus, spumous, strumous • blasphemous • bigamous , polygamous, trigamous • endogamous , monogamous • calamus ,...

hypothalamus

hypothalamus noun   Reference library

The Canadian Oxford Dictionary (2 ed.)

Reference type:
English Dictionary
Current Version:
2005
Subject:
English Dictionaries and Thesauri
Length:
37 words
hypothalamus

hypothalamus noun   Reference library

The New Zealand Oxford Dictionary

Reference type:
English Dictionary
Current Version:
2005
Subject:
English Dictionaries and Thesauri
Length:
36 words
hypothalamus

hypothalamus noun   Reference library

Australian Oxford Dictionary (2 ed.)

Reference type:
English Dictionary
Current Version:
2004
Subject:
English Dictionaries and Thesauri
Length:
38 words
hypothalamus

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New Oxford American Dictionary (3 ed.)

Reference type:
English Dictionary
Current Version:
2015
Subject:
English Dictionaries and Thesauri
Length:
79 words
hypothalamus

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Oxford Dictionary of English (3 ed.)

Reference type:
English Dictionary
Current Version:
2015
Subject:
English Dictionaries and Thesauri
Length:
76 words
hypothalamus

hypothalamus  

Reference type:
Overview Page
The region of the brain that controls the autonomic nervous system and links the nervous and endocrine systems of the body. See hypothalamo–pituitary–adrenal axis.

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