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Topic: Ventricle brain

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	IX. Neurology. 4c. The Fore-brain or Prosencephalon. Gray, Henry. 1918. Anatomy of the Human Body.
		The medial surface constitutes the upper part of the lateral wall of the third ventricle, and is connected to the corresponding surface of the opposite thalamus by a flattened gray band, the massa intermedia (middle or gray commissure).
		The ventricle is prolonged downward as a funnel-shaped recess, the recessus infundibuli, into the infundibulum, and to the apex of the latter the hypophysis is attached.
		At the junction of the roof and anterior wall of the ventricle, and situated between the thalami behind and the columns of the fornix in front, is the interventricular foramen (foramen of Monro) through which the third communicates with the lateral ventricles.
	www.bartleby.com /107/189.html (13328 words)

	University of Miami School of Medicine - Glossary - Ventricle, brain
		Ventricle, brain: One of a system of four communicating cavities within the brain that are continuous with the central canal of the spinal cord.
		Lateral ventricles: The lateral ventricles are in the cerebral hemispheres.
		The third ventricle is a median (midline) cavity in the brain that is bounded by the thalamus and hypothalamus on either side.
	www.med.miami.edu /glossary/art.asp?articlekey=9161 (230 words)

	Hydrocephalus: ventriculostomy
		A "twist drill" hole is made in the skull, and a catheter (tube) is placed through it, into the frontal horn of the lateral ventricle (placed through the lobe in the front of the brain, into a fluid filled cavity known as the ventricle).
		The ventricle is sometimes difficult to "hit" or target, and several "passes" of the tube through the brain may be necessary.
		The catheter in the brain is connected to a drainage bag, which is external to the body.
	www.bayareaneurosurgery.com /procedures/Hydrocephalus_ventricul.html (451 words)

	UNSW Embryology- Neural System Development - Cerebrospinal Fluid
		In development and the space within the spinal cord (central canal) and the brain (ventricles) was derived from the same space within the neural tube.
		CSF (cerebrospinal fluid) is produced by both choroid plexus (a structure lining the floor of the lateral ventricle (ventricle=the brain's interior fluid spaces) and the roof of the third and fourth ventricles) and weeping of tissue fluid by the brain into the ventricles.
		In the brain it is the outer layer, in the spinal cord it is inner layer.
	embryology.med.unsw.edu.au /Notes/neuron6.htm (2479 words)

	Brain Glossary - EnchantedLearning.com
		brainstem or brain stem - the base of the brain, this part of the brain connects the brain's cerebrum to the spinal cord.
		The brain stem is composed of the medulla oblongata, the pons, the midbrain, and the reticular formation.
		It is adjacent to the surface of the brain and the arachnoid.
	www.enchantedlearning.com /subjects/anatomy/brain/glossary (2165 words)

	Normal Fetal Brain Development: MR Imaging with a Half-Fourier Rapid Acquisition with Relaxation Enhancement Sequence ...
		of the ventricles to the diameter of the brain (Fig 1b).
		The size of the ventricular system at the level of the frontal horn angles and the midbody of the lateral ventricles was expressed as a fraction of the diameter of the brain at the same level (ventricle-to-brain ratio).
		Arrowheads point to the measured widths of the anterior horn of the lateral ventricle, and straight arrows indicate the diameter of the brain at the same level.
	radiology.rsnajnls.org /cgi/content/full/215/1/205 (3979 words)

	Development and Neurobiology: Genetics of Childhood Disorders: XXXVIII. Stem Cell Research, Part 2: Reconstructing the ...
		Almost all neurons and glia in the brain are derived from multipotent stem cells located in the germinal layers next to the ventricular cavities of the developing brain.
		The SVZ is a thin layer of dividing cells that lies along the length of the lateral wall of the lateral ventricles (Fig.
		We are left with the concept of a dynamic brain, one in which memories are perhaps formed by the addition of new cells, and possibility of a brain with a latent potential for self-repair.
	info.med.yale.edu /chldstdy/plomdevelop/genetics/02maygen.htm (2141 words)

	info: VENTRICLE (BRAIN) (Site not responding. Last check: 2007-10-20)
		From the third ventricle, the CSF flows into the fourth ventricle, after passing through a thin canal located in the dorsal brainstem (cerebral aqueduct).
		CSF is produced by the choroid plexus within the ventricles themselves and is reabsorbed into the venous system in the subarachnoid space between brain and skull.
		This cushioning fluid is produced by the choroid plexus tissue, which is located within the brain, and flows through a series of cavities (ventricles) out of the brain and down along the spinal cord.
	www.digital-innovations.net /Ventricle_(brain) (513 words)

	pchp4a (Site not responding. Last check: 2007-10-20)
		Brain tem gliomas are located in an area of the brain and spinal cord that is responsible for many vital body functions.
		Primary brain lymphomas are rare in children, but lymphomas starting elsewhere in the body may spread to the brain or spinal fluid.
		It is possible that the child may form a tumor in the brain from the leukemia cells, or much more commonly, that the cells will grow in the cerebrospinal fluid that circulates in the ventricles and around the brain.
	www.kirra.co.uk /pchp4a.htm (5316 words)

	MIT Department of Biology: Hazel L. Sive (Site not responding. Last check: 2007-10-20)
		Brain ventricles are required for normal brain development and function, and ventricular abnormalities are apparent in several neurodevelopmental disorders, including autism, indicating that this system is essential for normal mental health.
		We have begun to analyze brain ventricle development, using the zebrafish as a model, and taking a forward genetic approach.
		We suggest that mechanisms of brain ventricle development are conserved throughout the vertebrates.
	web.mit.edu /biology/www/facultyareas/facresearch/sive.shtml (1661 words)

	unborn baby
		The enlarged 4th ventricle could be a Dandy-Walker malformation, which when diagnosed in the prenatal period carries a 38% mortality and if the child survives there is a 75% chance of subnormal intelligence.
		There are some rare disorders also associated with enlargement of the 4th ventricle such as Joubert syndrome which consists of hyperpnea, jerking eye movements, hypotonia, and mental retardation.
		The aqueduct and the outflow of the fourth ventricle are obstructed by an inflammoatory process provoked by blood or bacterial menintitis.
	www.medhelp.org /forums/neuro/archive/9046.html (621 words)

	Psychiatric Times (Site not responding. Last check: 2007-10-20)
		The researchers found that, in chronically ill patients, ventricle enlargement was common and most pronounced in those patients who were most ill (i.e., had the most negative symptoms).
		The volume-by-time curves for cerebral, hippocampus and lateral ventricle volumes were significantly nonlinear, tending to asymptote during adolescence.
		Furthermore, because greater brain changes over time were associated with greater symptom severity and poorer clinical course, neuroanatomic changes may reflect the neurotoxic effects of psychotic illness.
	www.psychiatrictimes.com /p011093.html (2600 words)

	Brain Cancer Seizure - Cancer Resources (Site not responding. Last check: 2007-10-20)
		By allowing the brain time at this level the body and central nervous system can re-align and discharge these free radicals from harming the DNA or causing all sorts of problems.
		Brain cancer is perhaps one of the more emotionally charged diseases of man...
		a doubt that aspartame had caused brain tumors or brain cancer in animals, and is this not sufficient...
	www.the-cancer-directory.com /info/Brain-Cancer-Seizure.html (852 words)

	Treatments and Reports (Site not responding. Last check: 2007-10-20)
		Treatment was begun between 4/8 and 5/17/04, using a four-field conformal technique to irradiate the cerebellum, brain stem, and the surgical wound with a dose of 5040 rad in 28 fractions (treatments).
		It is agreed that you have a sizable recurrence of tumor despite the re-operation that you had, radiation therapy, Temodar and intravenous etoposide and carboplatin [though in fact the March scan was prior to the IV chemo].
		A mass lesion is identified in the fourth ventricle consistent with the patient's known ependymoma.
	home.earthlink.net /~mswelsh/adultependymoma/id13.html (2399 words)

	Explore the Brain - EnchantedLearning.com
		Although the brain is only 2% of the body's weight, it uses 20% of the oxygen supply and gets 20% of the blood flow.
		The brain is connected to the spinal cord, which runs from the neck to the hip area.
		Cerebrospinal fluid (CSF) is a clear, watery liquid that surrounds the brain and spinal cord, and is also found throughout the ventricle (brain cavities and tunnels).
	www.enchantedlearning.com /subjects/anatomy/brain/index.shtml (468 words)

	Schizophrenia.com - Schizophrenia is a Brain Disease
		Since the early 1980s, with the availability of brain imaging techniques and other developments in neuroscience, the evidence has become overwhelming that schizophrenia and manic-depressive disorder are diseases of the brain, just as multiple sclerosis, Parkinson’s disease, and Alzheimer’s disease are diseases of the brain.
		Significant Loss of Brain Gray Matter: Individuals with schizophrenia, including those who have never been treated, have a reduced volume of gray matter in the brain, especially in the temporal and frontal lobes.
		Enlaged Ventricles in the Brain: Individuals with schizophrenia, including those who have never been treated, typically have enlarged ventricles in the brain, as demonstrated in over 100 studies to date.
	www.schizophrenia.com /family/disease.htm (1790 words)

	Briefing Paper: Law enforcement and people with severe mental illnesses
		Schizophrenia and bipolar disorder are diseases of the brain
		Since the early 1980s, with the availability of brain imaging techniques and other developments in neuroscience, the evidence has become overwhelming that schizophrenia and bipolar disorder are diseases of the brain, just like multiple sclerosis, Parkinson’s disease, and Alzheimer’s disease.
		The brains of individuals with these diseases are measurably different from individuals who do not have these diseases, both structurally and functionally.
	www.psychlaws.org /BriefingPapers/BP7.htm (842 words)

	MRI Changes During Water Loading in Patients With Polydipsia and Intermittent Hyponatremia -- Leadbetter et al. 156 ...
		The purpose of this study was to verify that variations in physiologic
		brain and ventricle volumes on MRI during a prospectively defined
		There was a significant decrease in VBR and ventricle size during
	ajp.psychiatryonline.org /cgi/content/full/156/6/958 (1234 words)

	Altered K+ channel gene expression in diabetic rat ventricle: isoform switching between Kv4.2 and Kv1.4 -- Nishiyama et ...
		Total RNA was extracted from freshly isolated ventricles and brains using the guanidinium thiocyanate method (1).
		APD is prolonged in the STZ-induced diabetic rat ventricle (31, 38), and the attenuation of I
		Kv1.4 and Kv4.2 gene expression in the ventricle was not observed
	ajpheart.physiology.org /cgi/content/full/281/4/H1800 (4590 words)

	HHMI News: Researchers Discover New Source of Neural Stem Cells in Adult Brain
		Stem cells from comparable areas in the rodent brain follow a distinct path from their place of origin to the olfactory bulb (a brain region that processes smells), where they create new neurons.
		Alvarez-Buylla had previously characterized neural stem cells in the subventricular zone of the adult rodent brain, showing that newly born neurons migrate to the olfactory bulb.
		They studied brain tissue from the lateral ventricles - two cerebrospinal fluid-filled cavities in the center of the brain - available from either surgery patients or from pathology samples after autopsy.
	www.hhmi.org /news/sanai.html (875 words)

	Brain Models
		The deluxe brain model is medially divided and shows the brain arteries as well as the removable basilar artery.
		A comprehensive brain model that is a very useful teaching aid, especially for large groups of students.
		All structures of the brain and the ventricles are visible through median, frontal and horizontal divisions.
	www.kappamedical.com /brain_models.htm (232 words)

	Growth Factor Stimulation Leads To Increase In New Neurons In The Brain
		The study is the first to show the presence of numerous new neurons in certain regions of the brain where they previously have not been found, and suggests that the adult brain may be able to replace neurons lost due to injury or disease.
		The Emory scientists administered the growth factor BDNF (brain-derived neurotrophic growth factor) into the lateral ventricle of the brains of adult rats for approximately two weeks, and waited another two weeks before they examined the brains for the presence of new cells.
		Everywhere else in the brain, neurons are post-mitotic cells (unable to divide).
	www.sciencedaily.com /releases/2001/08/010831092954.htm (848 words)

	FuturePundit: New Type Of Stem Cells Found In Adult Human Brain
		Human brain astrocyte cells are capable of dividing and turning into all three types of mature brain cells.
		What is not clear to me is whether this exact same experiment has been tried in the primate species (chimpanzees and bonobos) that are closest to humans in evolution.
		The existence of stem cells in the brain was first discovered in canaries and this discovery upset the received wisdom for many decades that the adult brain never gained new nerve cells.
	www.futurepundit.com /archives/001939.html (2029 words)

	Ephrin-A2 reverse signaling negatively regulates neural progenitor proliferation and neurogenesis -- Holmberg et al. 19 ...
		Ephrin-A2 and EphA7 in a neural stem cell niche in the adult brain.
		Doetsch, F., Caille, I., Lim, D.A., Garcia-Verdugo, J.M., and Alvarez-Buylla, A. Subventricular zone astrocytes are neural stem cells in the adult mammalian brain.
		Martens, D.J., Seaberg, R.M., and van der Kooy, D. In vivo infusions of exogenous growth factors into the fourth ventricle of the adult mouse brain increase the proliferation of neural progenitors around the fourth ventricle and the central canal of the spinal cord.
	www.genesdev.org /cgi/content/full/19/4/462 (5432 words)

	Lake Michigan College Human Anatomy 205, The Nervous System (Site not responding. Last check: 2007-10-20)
		The Whole Brain Atlas at Harvard and Brain Atlas at University of Washington.
		Ventricle III in thalamus & ventricle IV in hind brain
		Brain Models [Superior View] [Inferior View][Lateral View] [Sagittal View]
	www.lakemichigancollege.edu /dept/Arts-Sciences/bio/anat/nervous.html (1280 words)

	Serial brain MRI at 3-6 month intervals as a surrogate marker for Alzheimer's disease -- Bradley et al. 75 (894): 506 ...
		To segment the brain and ventricles, contours enclosing the
		Critical analysis of the use of computer-assisted transverse axial tomography to study human brain in aging and dementia of the Alzheimer type.
		Quantitative cerebral anatomy of the aging human brain: a cross-sectional study using magnetic resonance imaging.
	bjr.birjournals.org /cgi/content/full/75/894/506 (3343 words)

	Brain Waves: Astrocytes Are Stem Cells (Site not responding. Last check: 2007-10-20)
		As Nadar Sadia, one of the primary researchers on the project details, "The astrocytes can form new stem cells and are able to generate all three types of mature brain cells...They form a novel ribbon-like structure in the brain's lateral ventricle.
		As I discussed in "Yes, Your Brain is Very Complex" and Tom Ray detailed in his five part Brain Waves series on "Exploring the Brain's Boundaries", our understanding of the brain's complexity continues to grow.
		He is currently finishing his book on Neurosociety: How Brain Science Will Shape the Future of Business, Politics and Culture.
	www.corante.com /brainwaves/archives/001985.html (385 words)

	Ventricle brain ratio in the clinical course of HIV infection.
		Ventricle brain ratio in the clinical course of HIV infection.
		As part of the computerized tomographic assessment of an unselected group of 47 patients in different stages of HIV infection we determined the ventricle brain ratio (VBR) and the width of several cortical sulci.
		We compared the findings for subgroups of patients defined by their stage in the Walter Reed Staging Classification.
	www.aegis.com /aidsline/1991/jan/M9110251.html (343 words)

	News Story: Full Text
		All patients received a comprehensive neuropsychological evaluation after treatment for a primary brain tumor in the third ventricular region.
		CONCLUSION: Patients with third ventricle tumors are at risk for developing impairments in memory, executive function, and fine manual speed and dexterity, which are domains associated with frontal subcortical functions.
		In the current study, different types of treatment were not associated with differential cognitive sequelae, and surgical intervention did not account for cognitive deficits.
	www.virtualtrials.com /news3.cfm?item=2120 (349 words)

	Technical Services - Surgical Care and Use Document (Site not responding. Last check: 2007-10-20)
		For ICVC the internalized tip is located in the lateral ventricle, while in TVC the tip is located in the third ventricle.
		Target coordinates and proper cannula placement are verified at the time of surgery by slowly injecting 5ul of methylene blue dye (2ul for mice) into the cannulas of the first two animals modified.
		Decapitation is followed by brain removal and slicing at the point of cannula entry.
	www.taconic.com /services/Surgeries/ICVC_and_TVC.htm (587 words)

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