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	Subthalamus
		During development the subthalamus is continuous with the hypothalamus and the dorsal thalamus, but is then separated by white matter fibres, mainly from the internal capsule.
		The largest part of the subthalamus is the globus pallidus, which is close to the putamen in the adult brain.
		The subthalamus develops efferent connections to the caudate nucleus and the putamen in the telencephalon, to the dorsal thalamus (medial and lateral nuclear groups) in the diencephalon and to the red nucleus and substantia nigra in the mesencephalon.
	www.mrsci.com /Central-Nervous-System/Subthalamus.php (120 words)

	subthalamus,subthalamus definition,about subthalamus
		Subthalamus is the part of the diencephalon which is wedged laterally between the thalamus and the hypothalamus.
		Subthalamus definition may also be given as - a transition zone in the anterior part of the diencephalon interposed between the thalamus, hypothalamus, and tegmentum of the mesencephalon.
		Components of the subthalamus include the subthalamic nucleus, zona incerta, nucleus of field H, and the nucleus of ansa lenticularis.
	parkinsonindia.org /subthalamus.htm (142 words)

	Reference Encyclopedia - Subthalamus
		The subthalamus, or prethalamus (formerly described as ventral thalamus), is part of the diencephalon.
		During development the subthalamus is continuous with the hypothalamus, but is separated by white matter fibres mainly from the internal capsule.
		Caudally, the subthalamus or prethalamus is separated from the thalamus by the zona limitans intrathalamica.
	referenceencyclopedia.com /?title=Subthalamus (206 words)

	Endotext.com - Neuroendocrinology, Hypothalamus, And Pituitary, Functional Anatomy of the Hypothalamus and Pituitary (Site not responding. Last check: 2007-10-09)
		(C) Course of afferent fibers from the thalamus, subthalamus and zona incerta to the hypothalamus.
		Afferents from the thalamus originate in nuclei of the median and medial thalamus, and course in the periventricular system and inferior thalamic peduncle of the ansa pednucularis (an extension of the medial forebrain bundle).
		Afferents from the subthalamus originate in the nucleus subthalamicus and zona incerta, and directly enter the hypothalamus along the lateral aspect of the hypothalamic wall.
	www.endotext.org /neuroendo/neuroendo3b/neuroendo3b_4.htm (2247 words)

	M-T Selected Cells (Site not responding. Last check: 2007-10-09)
		The ventral lateral nucleus and closely related ventral anterior nucleus (not shown) are parts of the motor system; they project to the motor system of the precentral gyrus.
		Visible below the thalamus are the subthalamus and the mammillary bodies of the hypothalamus.
		The subthalamus is a part of the motor system, while the mammillary bodies receive information from the fornix and contribute to the regulation of memory.
	mindsci-clinic.com /m-t_selected_cells.htm (213 words)

	Team projects on www for Biological Basis of Behavior - 2001
		The subthalamus also has afferent connections with neurons from the motor cortex, the medial centrum of the thalamus, the substantia nigra and the rapheal nuclei.
		This is due to disruption of the loop existing between the globus pallidus and the subthalamus.
		(Hypothalamus, Subthalamus, Thalamus) By: Aime Adams The sub-cortex diencephalon is the region of the forebrain surrounding the third ventricle and it includes the thalamus and the hypothalamus.
	www.humboldt.edu /~morgan/die_s01.htm (5106 words)

	[No title]
		The subcortex diencephalon is comprised of the subthalamus, the thalamus, and the hypothalamus (Guberman, 1994).
		Also listed are potential effects of injury to these regions: The subthalamus: The subthalamus is the part of the diencephalon that is placed between the thalamus on the dorsal side and the cerebral peduncle.
		The subthalamus is lateral to the dorsal half of the hypothalamus, and is continuous with the mesencephalic tegmentum (Harris, 1986).
	www.humboldt.edu /~morgan/sub3_s05.htm (5129 words)

	[No title]
		The diencephalon and its principal regions, namely the thalamus, hypothalamus, epithalamus, subthalamus, and circumventricular organs, are all described.
		Describe the structure and functions of the components of the diencephalon (thalamus, hypothalamus, epithalamus, subthalamus and circumventricular organs).
		The subthalamus is located inferior to the thalamus, includes tracts and the paired subthalamic nuclei which connect to motor areas of the cerebrum.
	www.angelo.edu /faculty/cadkins/AnatLOch19.doc (4796 words)

	[No title]
		In addition, the subthalamus, which is intimately associated with the amygdala, the motor thalamus and the striatum, participates in the organization and expression of gross purposeful affective-motoric behaviors (Crossman, Sambrook, & Mitchell, 1987; Parent & Hazrati, 1995).
		Thus the subthalamus (and striatum with which it is also intimately associated) can trigger running, kicking, punching, flailing, and a variety of oral and emotional facial expressions, or conversely "freezing" in reaction to extreme fear.
		The striatum and subthalamus act as an emotional-motor interface which enables humans (and other animals) to express their emotions through body language and facial expression.
	brainmind.com /Thalamus.html (3774 words)

	put_your_title_here
		In Huntington’s disease, the GABA-ergic and enkephalin neurons in the striatum degenerate.
		This leads to increased activity of the inhibitory (GABA-ergic) neurons from external globus pallidus to the subthalamus, which in turn causes a decrease in the glutamatergic (excitatory) neuronal activity on the internal globus pallidus.
		The result is a decreased inhibition on the thalamus, and the thalamus increases its excitatory (glutamatergic) effect on the cerebral cortex.
	web.indstate.edu /thcme/anderson/RPI.html (1516 words)

	ICPDMD: Brain Surgery May Help Patients With Severe Parkinson's Disease
		Two quadripolar electrodes are placed, one on the right and the other on the left of the subthalamus nucleus and a wire connecting the electrodes is implanted under the skin and linked to a pacemaker device, which is worn on the chest.
		The pacemaker is programmed to control the amount of electrical stimulation sent to the subthalamus and is periodically checked and adjusted by a physician.
		STN is the newest form of Deep Brain Stimulation, which was developed at the University of Grenoble for the treatment of movement disorders.
	www.docguide.com /dg.nsf/PrintPrint/D3CD498F380114598525669D0049E565 (921 words)

	Diencephalon Terms and Definitions at www.MedicalGlossary.org
		The paired caudal parts of the prosencephalon from which the THALAMUS; HYPOTHALAMUS; EPITHALAMUS; and SUBTHALAMUS are derived.
		Subthalamus - A transition zone in the anterior part of the diencephalon interposed between the thalamus, hypothalamus, and tegmentum of the mesencephalon.
		Thalamus - Paired bodies containing mostly gray substance and forming part of the lateral wall of the third ventricle of the brain.
	www.medicalglossary.org /prosencephalon_diencephalon_definitions.html (211 words)

	Medscape MEDLINE search: Subthalamus
		[Variance in effects of subthalamic nucleus stimulation]Chronic stimulation of subthalamus nucleus (STN) is effective in treating severe motor fluctuation and levodopa induced dyskinesia as well as parkinsonian motor symptoms.
		Subdyskinetic apomorphine responses in globus pallidus and subthalamus of parkinsonian patients: lack of clear evidence for the 'indirect pathway'.
		OBJECTIVES: Previous studies suggested that the hypo-activity of the external pallidus (GPe) might drive the hyper-activity of subthalamic neurons, which underlies the cardinal symptoms of Parkinson's disease.
	search.medscape.com /uslclient/searchMedline.do?queryText=Subthalamus (927 words)

	Brain Ventricles: Third Ventricle (Site not responding. Last check: 2007-10-09)
		The lateral walls are formed mainly by the medial surfaces of the 2 thalami.The lower lateral wall and the floor of the ventricle are formed by the hypothalamus and subthalamus.
		The following structures may be found in the floor of the third ventricle (from anterior to posterior end): optic chiasm, infundibulum, tuber cinereum, mammilary bodies, and subthalamus.
		Three openings communicate with the third ventricle: the two ventricular foramens at the anterior end communicate with the lateral ventricles, and the cerebral aqueduct (aqueduct of Sylvius) opens in the caudal end of the third ventricle.
	www.cerebromente.org.br /n02/fundamentos/ventriiii_i.htm (319 words)

	Facilities Services - WellChoice
		Unilateral deep brain stimulation of the thalamus and bilateral deep brain stimulation of the subthalamus is suggested as an alternative to thalamotomy, which are ablative surgical treatments used primarily for patients with refractory tremor symptoms associated with essential tremor and Parkinson’s disease.
		Deep brain stimulation of the subthalamus uses electrodes implanted bilaterally.
		Unilateral deep brain stimulation of the thalamus and bilateral deep brain stimulation of the subthalamus may be considered medically appropriate in patients with disabling, medically unresponsive tremor due to essential tremor or Parkinson’s disease.
	www.wellchoicenj.com /account_services/facilities/medicalpolicies/070163.shtml (476 words)

	Neurological Exam: Diencephalon: Anatomy
		It is composed of the thalamus, hypothalamus, epithalamus and subthalamus.
		The subthalamus includes the subthalamic nucleus and nearby associated fiber tracts related to the basal ganglia, and so is closely involved in motor activity.
		It is also close to the substantia nigra.
	isc.temple.edu /neuroanatomy/lab/lesions/29.htm (394 words)

	Physiology and Neuroanatomy of Huntington's Disease
		The basal ganglia consists of many parts, but the caudate, putamen, globus pallidus, substantia nigra, and the subthalamus are the major players in this system.
		The subthalamus' excitatory glutamate neurons to the GPi are thus inhibited.
		Both parts of the globus pallidus, the subthalamus, and the cerebral cortex decay as well.
	www.macalester.edu /psychology/whathap/UBNRP/Huntington/neuro.html (942 words)

	[No title]
		A lesion of the subthalamus is most likely to cause.
		A. The extrapyramidal structures subthalamus and zona incerta
		D. Globus pallidus --> subthalamus, substantia nigra, zona incerta, VA and VL thalamus, tegmentum, hypothalamus
	web.indstate.edu /thcme/anderson/mcbasgl.html (1086 words)

	subthalamus - OneLook Dictionary Search
		We found 8 dictionaries with English definitions that include the word subthalamus:
		Tip: Click on the first link on a line below to go directly to a page where "subthalamus" is defined.
		subthalamus : The On-line Medical Dictionary [home, info]
	www.onelook.com /?w=subthalamus (94 words)

	The Response of Subthalamic Nucleus Neurons to Dopamine Receptor Stimulation in a Rodent Model of Parkinson's Disease ...
		the subthalamus of rats with lesions of the nigrostriatal pathway
		The role of the D1 receptor in the dopaminergic regulation of the subthalamus is complex, as illustrated by the observation
		Kitai ST, Deniau JM (1981) Cortical inputs to the subthalamus: intracellular analysis.
	www.jneurosci.org /cgi/content/full/17/17/6807 (8089 words)

	The Diencephalon (Site not responding. Last check: 2007-10-09)
		The diencephalon consists of the thalamus, hypothalamus, subthalamus, and epithalamus.
		The subthalamus is considered with the basal ganglia (below).
		Lesions of the epithalamus (habenula) have not been correlated with specific deficits in man, possibly because isolated lesions have not been described.
	medinfo.ufl.edu /year2/neuro/review/dienc.html (378 words)

	Central nervous system - Wikipedia, the free encyclopedia
		The mesencephalon gives rise to the tectum, pretectum, cerebral peduncle and its cavity develops into the mesencephalic duct or cerebral aqueduct.
		The diencephalon give rise to the subthalamus, hypothalamus, thalamus and epithalamus, its cavity to the third ventricle.
		Finally, the telencephalon gives rise to the striatum (caudate nucleus and putamen), the hippocampus and the neocortex, its cavity becomes the lateral (first and second) ventricles.
	en.wikipedia.org /wiki/Central_nervous_system (583 words)

	MedFriendly.com: Third ventricle
		FLOOR: The floor of the third ventricle is formed by the following structures: the optic chiasm, mammillary bodies, tuber cinereum, hypothalamus, subthalamus, infundibulum, posterior perforated substance, and the upper part of the midbrain tegmentum.
		The subthalamus is an area of the brain located between the hypothalamus and the midbrain tegmentum (see below for description) that processes information about vision and balance.
		The infundibulum is a funnel-shaped stalk that extends from the hypothalamus to the back part of the pituitary gland.
	www.medfriendly.com /thirdventricle.html (1430 words)

	BRAIN DAMAGE ASSOCIATED WITH ALCOHOL ABUSE ( Subthalamus, hypothalamus, cerebellum, limbic system, cerebral cortex, and ...
		BRAIN DAMAGE ASSOCIATED WITH ALCOHOL ABUSE (Subthalamus, hypothalamus, cerebellum, limbic system, cerebral cortex, and behavioural effects.
		The Subthalamus, is at a small site in inferior aspect of the Thalamus and includes a variety of other parts (videlicet, somatic motor nuclei: the 'ventral lateral' for voluntary motor impulses and the 'ventral anterior' for stimulus for somatic and mental activity); that contain the source of the extrapyramidal motor system.
		The control and co-ordination of these motor activities may be effected by ethanol (
	www.fathershomepage.com /braindamage03.html (700 words)

	subthalamus - Dictionnaire Français-Anglais WordReference.com
		We found no English translation for 'subthalamus' in our French to English Dictionary.
		Or did you want to translate 'subthalamus' from English to French?
		Forum discussions with the word(s) 'subthalamus' in the title:
	www.wordreference.com /fren/subthalamus (41 words)

	macrotermes subthalamus (Site not responding. Last check: 2007-10-09)
		This was eventually done; but not until his taste for pictures had considerably advanced.
		macrotermes subthalamus It was now that he began to take a keen interest in objects of art, pictures, bronzes, little carvings and figurines, for his cabinets, pedestals, tables, and etageres.
		Philadelphia did not offer much that was distinguished in this realm-certainly not in the open market.
	brain.arkon-rv.org /6485275a793.html (747 words)

	SUBTHALAMUS - BRAINMAPS.ORG - BRAIN ATLAS, BRAIN MAPS, BRAIN STRUCTURE, NEUROINFORMATICS, BRAIN, STEREOTAXIC ATLAS, ...
		SUBTHALAMUS - BRAINMAPS.ORG - BRAIN ATLAS, BRAIN MAPS, BRAIN STRUCTURE, NEUROINFORMATICS, BRAIN, STEREOTAXIC ATLAS, NEUROSCIENCE
		Sb · subthalamic nucleus · subthalamus · ZI · zona incerta · substantia nigra · internal capsule
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	brainmaps.org /index.php?i=Subthalamus (68 words)

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