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Topic: Medial longitudinal fasciculus

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	Medial longitudinal fasciculus - Wikipedia, the free encyclopedia
		Lemniscus (in blue) with a’ the medial lemniscus and a" the lateral lemniscus.
		The medial longitudinal fasciculus (MLF) is a pair of crossed fiber tracts (group of axons), one on each side of the brainstem, that carry information about the direction that the eyes should move.
		The MLF arises from the Vestibular nucleus (VN) and is thought to be involved in the maintenance of gaze.
	en.wikipedia.org /wiki/Medial_longitudinal_fasciculus (360 words)

	IX. Neurology. 4b. The Mid-brain or Mesencephalon. Gray, Henry. 1918. Anatomy of the Human Body.
		The medial surface of the peduncle forms the lateral boundary of the interpeduncular fossa, and is marked by a longitudinal furrow, the oculomotor sulcus, from which the roots of the oculomotor nerve emerge.
		Thicker medially than laterally, it reaches from the oculomotor sulcus to the lateral sulcus, and extends from the upper surface of the pons to the subthalamic region; its medial part is traversed by the fibers of the oculomotor nerve as these stream forward to reach the oculomotor sulcus.
		The principal gray masses of the tegmentum are the red nucleus and the interpeduncular ganglion; of its fibers the chief longitudinal tracts are the superior peduncle, the medial longitudinal fasciculus, and the lemniscus.
	www.bartleby.com /107/188.html (3293 words)

	[No title]
		Truncal ataxia is seen in patients with lesions of the [appeared on 2002/02] a) VPL of the thalamus b) Medial longitudinal fasciculus (MLF) c) Vermis d) Pons e) Spinal cord 3.
		Which tract is the main mediator of nystagmus and conjugated gaze a) Central tegmental fasciculus b) Lateral vestibulospinal tract c) Dorsal longitudinal fasciculus d) Tectospinal tract e) Medial longitudinal fasciculus 121.
		The components of the MLF are [appeared on 2002/02] a) Medial reticulospinal, medial, vestibulospinal, interstitiospinal and tectospinal tracts 150.
	www.uagmd.com /quizbank/2002quizbank.txt (5165 words)

	medial longitudinal fasciculus - multiple sclerosis encyclopaedia (Site not responding. Last check: 2007-11-01)
		It is due to a lesion in the medial longitudinal fasciculus (MLF) which connects the sixth nerve nuclei to the contralateral medial rectus muscle nucleus.
		In unilateral case, there is loss of adduction of the contralateral medial rectus on attempted conjugate gaze.
		Convergence is usually not affected in lesion of the medial longitudinal fasciculus (MLF) alone.
	www.mult-sclerosis.org /mediallongitudinalfasciculus.html (277 words)

	tract
		In transverse sections of the mesencephalon the bundle occupies a large triangular area lateral to the medial longitudinal fasciculus; farther caudally it expands ventralward and finally passes over the lateral side of the (inferior) olivary nucleus, becoming part of the latter's fiber capsule.
		a fiber bundle arising in the superior colliculus, passing caudoventrally on the same side along the medial side of the lateral lemniscus, issuing fibers terminating in the lateral zone of the mesencephalic tegmentum, and ending in the lateral part of the gray matter of the ventral part of the pons.
		ends in the medial region of the anterior horn of the cervical spinal cord, and appears to be involved in head movements during visual and auditory tracking.
	www.painhealth.com /word.asp?q=43155 (2438 words)

	Neuroanatomy
		The substantia gelatinosa and dorsal lateral fasciculus are prominent at this level, and throughout the upper cervical cord as well, because these structures are overlapped by the spinal nucleus and the spinal tract of the trigeminal nerve which carry sensation from the ipsilateral face.
		The spinal nucleus and tract of the trigeminal nerve, the spinothalamic tract, fasciculus cuneatus and fasciculus gracilis, and the beginning of nucleus gracilis should also be identified on this slide.
		Also note the medial lemniscus, the spinothalamic tracts and the lateral lemniscus which are easily defined here because the fibers and nuclei of the trapezoid body are not present in the rostral pons.
	webteach.mccs.uky.edu /COM/DLOTW_cd/na_images_fr_2b.html (1191 words)

	Untitled Document
		The medial longitudinal fasciculus (MLF) extends from the midbrain, at the level of the oculomotor nucleus, to the cervical spinal cord.
		The MLF carries axons from the contralateral abducens nucleus to the ipsilateral oculomotor nucleus, to maintain the ipsilateral medial rectus muscle in a conjugate gaze towards the contralateral side.
		Therefore, if the MLF lesion is on the left, the left medial rectus muscle will no longer maintain a conjugate gaze when looking towards the right.
	www2.uchc.edu /~cns/CNScases/Anatomy/BrainStem/MedLongFasc.htm (138 words)

	Dorsal - Encyclopedia, History, Geography and Biography
		In linguistics, a dorsal consonant refers to hard sounds utilizing the tongue on the back of the mouth, such as palatal, velar, and uvular consonants.
		In neurology, dorsal is an outdated term for the medial longitudinal fasciculus in the neural arch.
		In 1846 neurologist Benedict Stilling first referred to what is now known as the medial longitudinal fasciculus as acusticus, followed by Theodor Meynert in 1872 calling it posterior.
	www.arikah.net /encyclopedia/Dorsal (398 words)

	InterNuclear Ophthalmoparesis In Multiple Sclerosis Abstracts
		The Medial Longitudinal Fasciculus (MLF) lies in the ParaMedian portion of the upper BrainStem Tegmentum, and the lesion in this Fasciculus shows specific abnormality of the eye movement pattern which is known as the MLF Syndrome.
		It was speculated that Ventro-Caudal extension of the lesion involved the Decussation of the Superior Cerebellar Peduncle, and was responsible for the association of Cerebellar Ataxia with MLF Syndrome.
		InterNuclear Ophthalmoplegia (INO) is a Gaze Disorder characteristic of lesions involving the Medial Longitudinal Fasciculus (MLF).
	members.tripod.com /ThJuland/ino2g.html (1879 words)

	IS-A Hierarchy
		Structure of pontine portion of medial longitudinal fasciculus (body structure)
		Structure of longitudinal fasciculi of pons (body structure)
		Structure of pontine portion of medial longitudinal fasciculus
	snomed.vetmed.vt.edu /sct/ISA.cfm?SCT_ConceptID=7697002 (88 words)

	Lesion responsible for WEMINO syndrome confirmed by magnetic resonance imaging -- Ikeda and Okamoto 73 (2): 204 -- ...
		fasciculus because his impairments were limited to the ocular
		to the anatomical area of the medial longitudinal fasciculus.
		phenomenon accompanying injury to the medial longitudinal fasciculus.
	jnnp.bmjjournals.com /cgi/content/full/73/2/204 (821 words)

	[No title]
		The large bundle of axons that runs upward from the cerebellum into the midbrain tegmentum is the a) Superior cerebellar peduncle b) Middle cerebellar peduncle c) Inferior cerebellar peduncle d) Medial longitudinal fasciculus 3.
		It controls conjugate eye movements reflexly in response to head movement and to the position of the head in space [2002/02] a) Median longitudinal fasciculus b) Gower's tract c) Flesching's tract d) Central tegmental tract e) Spinothalamic tract 13.
		Lesion of the medial longitudinal fasciculus results in a) Internuclear ophthalamoplegia b) Weber's syndrome c) Parinaud's syndrome d) Dejerine-Roussy syndrome e) Wallenberg's syndrome 27.
	www.uagmd.com /quizbank/nanat_0003_text.txt (1837 words)

	The vestibuloocular reflex of the adult flatfish. II. Vestibulooculomotor connectivity -- Graf and Baker 54 (4): 900 -- ...
		contralateral medial longitudinal fasciculus and terminated in the superior
		canal neurons ascended ipsilaterally in the medial longitudinal fasciculus
		axon ascended in the contralateral medial longitudinal fasciculus.
	jn.physiology.org /cgi/content/abstract/54/4/900 (351 words)

	eMedicine - Abducens Nerve Palsy : Article Excerpt by: Michael P Ehrenhaus, MD
		It has the longest subarachnoid course of all the cranial nerves; therefore, its syndromes are similar to those of the fourth nerve because of their long intracranial courses.
		The sixth nerve nucleus is located in the pons, just ventral to the floor of the fourth ventricle and just lateral to the medial longitudinal fasciculus (MLF).
		About 40% of its neurons protect into the ipsilateral MLF only to cross over to the contralateral side and ascend to innervate that contralateral medial rectus subnucleus to participate in contralateral eye adduction.
	www.emedicine.com /oph/byname/abducens-nerve-palsy.htm (721 words)

	Vertical Gaze Palsies From Medial Thalamic Infarctions Without Midbrain Involvement -- Clark and Albers 26 (8): 1467 -- ...
		the paramedian region of the thalamus and the rostral medial mesencephalon.
		The neural structures known to be involved in the mediation
		those involved in mediation of vertical gaze are not well understood.
	stroke.ahajournals.org /cgi/content/full/26/8/1467 (1911 words)

	InterNuclear Ophthalmoplegia (INO) Abstracts
		An increased tone of the antagonistic Medial Rectus muscle during Lateral Gaze either by abnormal Convergence or impaired Medial Rectus inhibition seems most likely.
		It was obvious that the lesion included the MLF and caused the MLF Syndrome in these cases.
		Permission is granted to MS Societies and all MSers to utilize information from these pages provided that no financial reward is gained and attribution is given to the author/s.
	members.tripod.com /~ThJuland/ino.html (1602 words)

	W. R. Zemlin Memorial Web Site - Text only version - Central Nervous System
		Cerebral hemispheres with arachnoid mater as seen from above.
		Note small area near longitudinal fissure on the right where arachnoid was torn due to adhesion to overlying dura mater.
		Arachnoid villi (or granulations) are shown on the left.
	zemlin.shs.uiuc.edu /CNS/text.htm (598 words)

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