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hypothalamus

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aggression

aggression  

Behaviour in an animal that serves to intimidate or injure another animal, but that is not connected with predation.
anterior pituitary

anterior pituitary  

The front part or lobe of the pituitary gland that, in response to hormones from the hypothalamus, secretes trophic hormones controlling most of the other endocrine glands in the body, and that also ...
antidiuretic hormone

antidiuretic hormone  

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A hormone, secreted by the posterior pituitary gland, that stimulates reabsorption of water by the kidneys and thus controls the concentration of body fluids. ADH is produced by specialized nerve ...
appestat

appestat  

n. a region in the brain that controls the amount of food intake. Appetite suppressants probably decrease hunger by changing the chemical characteristics of this centre.
arcuate nucleus

arcuate nucleus  

A small nucleus near the base of the hypothalamus containing the cell bodies that produce hypothalamic hormones.
autonomic nervous system

autonomic nervous system  

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That part of the nervous system that controls and regulates involuntary body functions (e.g. digestion, heart rate, and temperature regulation). It is divided up into the sympathetic and ...
baroreceptor

baroreceptor  

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(ba-roh-ri-sep-ter)a collection of sensory nerve endings specialized to monitor changes in blood pressure. The main receptors lie in the carotid sinuses and the aortic arch.
body clock

body clock  

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We live in a world that changes its levels of illumination and temperature every day and night of our lives. To make the best of opportunities and to avoid the ...
body temperature

body temperature  

The temperature of the body, as measured by a thermometer. In most normal individuals body temperature is maintained at about 37°C (98.4°F). A rise in body temperature occurs in fever.
brain

brain  

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n. the enlarged and highly developed mass of nervous tissue that forms the upper end of the central nervous system (see illustration). The average adult human brain weighs about 1400 g (approximately ...
breast

breast  

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(brest)1 the mammary gland of a woman: one of two compound glands that produce milk. Each breast consists of glandular lobules – the milk-secreting areas – embedded in fatty tissue. The milk passes ...
bulimia

bulimia  

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n. insatiable overeating. This symptom may be psychogenic, occurring, for example, as a phase of anorexia nervosa (bulimia nervosa or the binge–purge syndrome); or it may be due to neurological ...
cerebral cortex

cerebral cortex  

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The outer layer or ‘bark’ (from the Greek) of the brain, associated with sensory perception and the higher mental functions. It appeared late in evolution, and is especially developed in man.[...]
clock, internal

clock, internal  

A physiological mechanism, governed by ‘clock genes’, that regulates the production of proteins that control cycles of sleeping and waking, body temperature, heart activity, hormone secretion, blood ...
cyproheptadine hydrochloride

cyproheptadine hydrochloride  

A drug used to increase appetite and weight, possibly through its actions on the appetite centre in the hypothalamus. Drowsiness is a common side-effect.
development and growth: birth and infancy

development and growth: birth and infancy  

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The Latin word infans means ‘not speaking’ and by convention the word infancy has come to mean the first year of childhood. There are very great differences between mammalian species ...
diencephalic amnesia

diencephalic amnesia  

A form of amnesia resulting from loss of neurons in the diencephalon, especially the midline thalamus and the mammillary bodies of the hypothalamus. This pattern of pathology is often associated with ...
diencephalon

diencephalon  

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n. an anatomical division of the forebrain, consisting of the epithalamus, thalamus (dorsal thalamus), hypothalamus, and ventral thalamus (subthalamus). See brain.
dopamine

dopamine  

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A catecholamine that is a precursor in the synthesis of noradrenaline and adrenaline. It also functions as a neurotransmitter, especially in the brain.
endocrine gland

endocrine gland  

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(ductless gland) a gland that manufactures one or more hormones and secretes them directly into the bloodstream (and not through a duct to the exterior). Endocrine glands include the pituitary, ...

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