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| | MedFriendly.com: Upper motor neuron paralysis |
 | | Upper motor neurons are neurons (nerve cells) in the motor cortex (an area of the brain located in middle, top part of the brain) that form pathways within the brain and from the brain to the spine. | | | Upper motor neuron paralysis is type of paralysis (loss of movement and/or sensation) that is due to injury or damage in the brain or spinal cord. | | | Another problem associated with upper motor neuron paralysis includes spasticity (involuntary muscle contractions) with hyperactive deep tendon reflexes (contracting muscles in response to a stretched muscle caused by a sharp tap). |
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http://www.medfriendly.com/uppermotorneuronparal.html
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| | The Motor System |
| | Motor neurons in dorsolateral region of spinal cord ù innervate muscles in extremities. | | | Motor neurons in ventromedial portion ù innervate axial muscles of body to maintain posture. | | | Motor systems transform neural information into physical energy by issuing commands that are transmitted by the brain stem and spinal cord to skeletal muscles. |
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http://www.bioweb.uncc.edu/humanphys/motor.htm
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| | SPF - Upper Motor Neuron Disorders Chart |
| | “Upper motor neurons” in the brain and spinal cord degenerate. | | | Important discoveries are being made for other motor neuron diseases, related neurologic disorders and recovery from spinal cord injury. | | | There is much to be hopeful for that cures for these conditions will be found. |
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http://www.sp-foundation.org/chart.htm
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| | Motor > Anatomy |
| | There are also the indirect brainstem motor control centers and their pathways (rubrospinal, vestibulospinal, and reticulospinal) that tonically activate lower motor neurons, especially those that innervate axial and antigravity muscles (those motor neurons that are in the medial part of the ventral horn). | | | An UMN lesion is on the opposite side of the clinical findings for a lesion above the decussation of the pyramids (where the corticospinal tracts cross) whereas it is on the same side as clinical findings if the lesion is in the spinal cord. | | | Lesions of the LMN, "the final common pathway", result in loss of strength, tone and reflexes with the denervated muscle showing wasting and denervation hypersensitivity- fasciculations. |
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http://medstat.med.utah.edu/neurologicexam/html/motor_anatomy.html
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| | Physiology III Neuroscience - Posture, Voluntary Motor Control, Control Circuits |
| | Dopamine has opposite effects on the direct and indirect pathways: It is excitatory to striatal cells feeding into the direct pathway and inhibitory to those of the indirect pathway. | | | These fibers inform the cerebellum of limb position and movement, it is processed, and through connections with the motor cortex via the thalamus, influence movements of the extremities and muscle tone. | | | Glutamate excitotoxicity is thought to be the mechanism for the striatal neuron death. |
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http://www.hodsonhome.com/mna2001/physiology/physiology3/exam2/phys3.posturevoluntarymotorcontrol.htm
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| | Types of Dysarthria: Upper Motor Neuron Damage |
| | This information is very important for somatic motor, or skeletal muscle control and the regulation of muscle tone, smoothness of movement and for posture. | | | This means that both the left and right members of most pairs of cranial nerves are innervated by the motor strips of the right and left hemispheres of the brain. | | | Therefore, unilateral lesions of the pyramidal tract can cause paralysis of the muscles innervated by the spinal nerves on the opposite side of the body. |
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http://www.csuchico.edu/%7epmccaff/syllabi/SPPA342/342unit12.html
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| | ATSDR - Motor Neuron Disease/Amyotrophic Lateral Sclerosis: Preliminary Review of Environmental Risk Factors and ... |
| | The lower motor neurons project nerve impulses from the spinal cord to the skeletal muscles. | | | Symptoms of lower motor neuron damage include shrinking and weakness, twitching of muscle fibers (fasciculation), and loss of tendon reflexes in the affected limbs (6). | | | The Greek term amyotrophic translates to "no nourishment to the muscle" which leads to muscular wasting; the term lateral refers to an area in the spinal cord where motor neurons pathways are located; and the term sclerosis describes the scarring or hardening in the spinal cord that results when these motor neurons deteriorate (1). |
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http://www.atsdr.cdc.gov/NEWS/alsreport.html
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| | Diagnosis & Treatment of Motor Neuropathies |
| | Pathological studies show a loss of motor neurons in the ventral horn of the spinal cord and some involvement of sensory tracts. | | | This is in contrast to patients with ALS who often have prominent upper motor neuron and bulbar findings. | | | Patients with motor neuropathies may have preserved reflexes in weak muscles, but overt spasticity and bulbar features are conspicuously lacking. |
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http://www.neuro.wustl.edu/neuromuscular/antibody/motpn2.htm
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| | Altered motor control and spasticity after spinal cord injury: Subjective and objective assessment |
| | Spasticity and related UMN dysfunction should be recognized as a motor behavior. | | | This technique may be directly applied to repeated observations on the same subject to describe changes in motor control with treatment (e.g., as the uncertainty of the inverse problem may be assumed a constant). | | | The clinical hallmark of spasticity, as ordinarily construed, is the resistance to passive stretch. |
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http://www.vard.org/jour/00/37/1/sherwood.htm
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| | eMedicine - Spasticity : Article by Zeba F Vanek, MD |
| | During the development of spasticity, the spinal cord undergoes neurophysiologic changes in the excitability of motor neurons, interneuronal connections, and local reflex pathways. | | | The upper motor neuron syndrome results from damage to descending motor pathways at cortical, brainstem, or spinal cord levels, and spasticity evolves in the days and weeks after injury. | | | Spasticity is associated with some very common neurological disorders—multiple sclerosis, stroke, cerebral palsy, spinal cord and brain injuries, and neurodegenerative diseases affecting the upper motor neuron, pyramidal and extrapyramidal pathways. |
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http://www.emedicine.com/neuro/topic706.htm
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| | BIOSI: Neuroscience and Medicine |
| | This form is also termed amyotrophic lateral sclerosis (amyotrophy refers to the muscle weakness and wasting due to the dennervation of that muscle), and one of it’s hallmarks is a combination of both upper (rigidity and hyper-reflexia) and lower (weakness, wasting, and fasciculation) motor neuron signs in one body part. | | | A number of other experimental approaches are ongoing, for example, CNTF delivered by means of genetically-engineered cells housed within a semipermeable polymer membrane in within the spinal canal have not proved helpful in small scale trials, but with modification may still prove to be useful. | | | Genes responsible for the other familial forms have yet to be identified. |
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http://www.cf.ac.uk/biosi/research/neuroscience/mnd.html
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| | MDA / Quest 4-2 / What Ails Ya |
| | Upper motor neuron damage results in weakness, muscle stiffness and exaggerated reflexes. | | | LS: Babinski was a French neurologist of the 19th century who described a response, or reflex, that is indicative of upper motor neuron lesion (injury) or dysfunction. | | | Reappearance of this reflex indicates a problem in the corticospinal tract, those neurons in the central nervous system responsible for controlling muscle. |
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http://www.mdausa.org/publications/Quest/q42ails.html
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| | [No title] |
| | the lower motor neuron cells, that is. people get confused about this and it needs clarification. | | | a quadriplegic with little motor function after injury regained normal upper body strength with gross movement of some fingers. | | | by our standards, it is important to consider that normal upper body strength with gross paw movement probably isn't enough to prevent euthanasia... |
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http://www.hillary.net/school/medsurg3/medsurg3.lec.12.02.98
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| | Neuroscience at a Glance |
| | Upper motorneuron lesion lesion that interrupts the corticospinal (and probably rubrospinal) projection to the anterior horn and brainstem motorneurons causing increased tone and reflexes with weakness that is more in the extensors in the upper limb and flexors in the legs | | | Babinski response the plantar response which describes the movement of the toes when the sole of the foot is scratched. | | | Clonus involuntary rhythmic movements due to an upper motorneuron lesion and exaggerated reflexes. |
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http://www.medicalneuroscience.com/mgloss.htm
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| | ALS/MOTOR NEURON DISEASE A VERY IMPORTANT DISCOVERY! |
| | Motor Neuron Disease and or ALS can be divided into clinical subsets based on the patients pattern of weakness, abnormalities on nerve conduction studies and needle electromyography and serum antibodies against specific glycolipids. | | | The muscles in my throat atrophied, then my upper chest, next, into my right shoulder, right arm and hand. | | | There is some good news for those who have Spinal Bulbar Muscular Atrophy, and there is some very bad news. |
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http://www.baar.com/als_xlnk.htm
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| | Spasticity |
| | In some cases, the increased tone due to spasticity is helpful to maintain the legs straight and thereby to support the child's weight against gravity. | | | In order to examine a child with spasticity, the involved muscles must be stretched at varying speeds. | | | Physician's Guide To HD Caring for People with HD Physical and Occupational Therapy In HD Understanding Behaviour in HD-Dr. Jane Paulsen |
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http://endoflifecare.tripod.com/juvenilehuntingtonsdisease/id56.html
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| | The use of electrical stimulation for correction of dropped foot in subjects with upper motor neurone lesions |
| | The following are contraindications; fixed contractures of the ankle, poorly controlled epilepsy (there is some anecdotal evidence of symptoms being exacerbated by electrical stimulation) and poor skin condition in the area of the electrodes. | | | After examining this and evidence from other groups, the committee recommended the ODFS for use in the UK's National Health Service for patients with upper motor neurone lesions. | | | Patients are first seen at an assessment clinic. |
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http://www.salisburyfes.com/acnr.htm
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| | Course Lecture Notes |
| | Describe the major components of the pathway by which the basal nuclei affect the motor cortex. | | | Describe the general characteristics of the three neuron pathways for general somatic sensation | | | Describe the pathways by which they affect the lower motor neurons |
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http://www.nwhealth.edu/suplemen/cns/cns-rev.html
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| | Motor Neuron symptoms with Cervical Cord lesion |
| | His strength is normal elsewhere He has absent upper extremity reflexes and normal lower extremity reflexes. | | | He has wasting of the intrinsic muscles of both hands. | | | He has 3/5 strength of his intrinsic hand muscles and 4/5 in the wrist flexors and extensors. |
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http://www.npsych.com/site/motor-cerv.htm
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| | Publications 2002 |
| | Gabel, S.F. Optic flow: from neuron to behavior. | | | In Proceedings of the Workshop on Music, Motor Behavior and the Mind (pp. | | | Gabel, S.F., Misslisch, H., Gielen, C.C.A.M., and Duysens, J.E.J. Responses of neurons in area VIP to self-induced and external visual motion. |
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http://www.nici.kun.nl/Publications/2002/index.html
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| | Upper motor neuron -- Facts, Info, and Encyclopedia article |
| | The latter connect the spinal cord to (One of the contractile organs of the body) muscles. | | | Damage to lower motor neurons is indicated by (Muscular twitching of contiguous groups of muscle fibers) fasciculations, weakening of muscles, and muscular (A decrease in size of an organ caused by disease or disuse) atrophy. | | | Damage to upper motor neurons is indicated by (The quality of moving or acting in spasms) spasticity and exaggerated (An automatic instinctive unlearned reaction to a stimulus) reflexes. |
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http://www.absoluteastronomy.com/encyclopedia/u/up/upper_motor_neuron.htm
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| | Unilateral Upper Motor Neuron Dysarthria |
| | Clinically can any other structures that are bilaterally innervated be affected by effects of unilateral UMN. | | | Effect of the Aging process, general health conditions | | | Describe some treatment procedures for Unilateral UMN dysarthria. |
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http://www2.muw.edu/~mharmon/501ch6stg.html
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| | Upper New York Bay - encyclopedia article about Upper New York Bay. |
| | The channel of the Hudson as it passes through the harbor is called the Anchorage Channel and is approximately 50 feet deep in the mid point of the harbor. | | | This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. | | | In the broad sense, the term may be loosely taken to include the following bodies of water: |
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http://encyclopedia.thefreedictionary.com/Upper+New+York+Bay
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| | Disorders of Upper and Lower Motor Neuron - NRSG 812 |
| | Selective degeneration of motor neurons in the primary motor cortex and the anteriolateral horns of the spinal cord. | | | The cause is unknown but it has been tied to the loss of a glutamate transporter that may cause excitotoxicity in ALS by increasing extracellular levels of glutamate. | | | Most common UPPER motor neuron disease is Amyotrophic lateral sclerosis (ALS). |
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http://classes.kumc.edu/son/nrsg812/jpierce/fall/content/week15/upperlowermotor.htm
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| | Motor Neuron Disease |
| | of the spinal cord, brainstem, or motor cortex. | | | In primary lateral sclerosis, the cortical neurons are affected in isolation. | | | Diseases characterized by a selective degeneration of the motor neurons |
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http://medical.webends.com/kw/Motor+Neuron+Disease
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| | Quantification of upper motor neuron loss in amyotrophic lateral sclerosis. |
| | METHODS: We used the recently developed triple stimulation technique (TST) to study corticospinal conduction to 86 abductor digiti minimi muscles of 48 ALS patients. | | | In sides with clinical UMN syndromes, the TST response size (but not the CMCT) correlated with the muscle weakness. | | | Therefore, the TST has a considerable impact on diagnostic certainty in many patients. |
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http://www.pdg.cnb.uam.es/UniPub/iHOP/gp/8636556.html
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| | spinetf4text-motor neuron disease. |
| | There is usually a loss of the ventral bulge of the cervical spinal cord. | | | Motor Neuron Disease (MND) is a disorder that involves the upper and lower motor neurons. | | | There is neuronal cell loss, more so in the cervical and lumbar enlargements. |
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http://www.mribhatia.com/spinetf4/spinetf4text.html
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| | CIDP Support Group - CIDP |
| | CIDP or chronic inflammatory demyelinating polyradiculoneuropathy is an immune-mediated neuropathy that affects the peripheral motor and sensory nerves. | | | Patients may present with pain, numbness or weakness. | | | Physical examination consistent with distal sensory loss in the upper and lower extremities, in conjunction with motor weakness that can be more proximal than distal supports the clinical diagnosis. |
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http://www.cidpusa.org
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| | BioMed Central Abstract Amyotrophic Lateral Sclerosis: Objective Upper Motor Neuron Markers |
| | Transcranial magnetic stimulation is a more established technique that evaluates the neurophysiologic integrity of upper motor neurons in ALS. | | | With several new therapeutic agents on the horizon, effective and objective disease markers for diagnosis and surrogate outcome measures in clinical trials are crucial. | | | Metabolic aspects in the brains of ALS patients have been evaluated using positron emission tomography. |
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http://www.biomedcentral.com/1528-4042/2/55/abstract
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| | Upper Motor Neuron - Talk Medical |
| | Damage toupper motor neurons can result in spasticity and exaggerated reflexes. | | | Upper motor neuron: A neuron that starts in the motor cortex of the brain and terminates within the medulla (another part of the brain) or within the spinal cord. | | | Talk Medical > Medical Dictionary > Upper Motor Neuron |
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http://www.talkmd.com/medical-dictionary/14885/Upper-Motor-Neuron
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| | LLUMC neurosciences ALS manual |
| | "Cervical" includes the muscles of the back of the head and the neck, the shoulders and upper back, and the upper extremities. | | | The symptoms that some patients with ALS may experience and the signs that are found on their neurologic examination are summarized in Table 1. | | | Although ALS presents as a disease of muscle wasting, it is caused by the loss of the nerves that are connected to those muscles. |
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http://www.llu.edu/llumc/neurosciences/als
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| | Yale- Cranial Nerve 7, pg. 13 |
| | Atrophy of muscles of lower portion of the face on affected side* | | | UMN lesions are usually the result of a stroke. | | | Voluntary control of muscles of the forehead will be spared due to the bilateral innervation of the portion of the motor nucleus of CN VII that innervates the upper muscles of facial expression. |
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http://www.med.yale.edu/caim/cnerves/cn7/cn7_13.html
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| | eMedicine - Craniofacial, Pharyngoplasty and Pharyngeal Flaps : Article by Alexander Margulis, MD |
| | The palatopharyngeus muscles (which also form a sling) and the superior constrictor muscles help in this action. | | | To stimulate collapse of the pharyngeal walls in patients with obstructive sleep apnea, have the patient perform a modified Müller maneuver. | | | Acute obstructive sleep apnea occurs in approximately 15% of patients with pharyngeal flaps and in slightly less with sphincter pharyngoplasty. |
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http://www.emedicine.com/plastic/topic180.htm
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| | Motor Syndromes |
| | ALS with Bulbar onset, Benign course and Bunina bodies | | | Joint pain and cold intolerance may accompany the syndrome | | | Loss of motor neurons in anterior horn of spinal cord |
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http://www.neuro.wustl.edu/neuromuscular/motor.html
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| | Chapter seven |
| | apraxia: inability to perform a learned motor skill (but no paralysis) | | | B. UMN signs on the side of the body contralateral to the lesion | | | A. tetraplegic (quadriplegic): if the upper cervical cord is transected |
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http://academic.uofs.edu/faculty/OAKESM2/chapter7.html
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| | dysarth |
| | This exercise may be implemented with clients who exhibit problems with breath support. | | | Muscular weakness, slowness, or incoordination can affect all the basic processes of speech - respiration, phonation, resonance, articulation, and prosody. | | | As a client voices into the microphone, varying your pitch, the mobile indicates the upper and lower limits of the pitch range. |
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http://mick.murraystate.edu/cdi615/spring98/dysarth.htm
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| | Hyperreflexia - definition of Hyperreflexia in Encyclopedia |
| | Examples of this can include twitching or spastic tendencies, which are indicative of upper motor neuron disease as well as the lessening or loss of control ordinarily exerted by higher brain centers of lower neural pathways (disinhibition). |
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http://encyclopedia.laborlawtalk.com/Hyperreflexia
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| | MedFriendly.com: Upper motor neuron |
| | They are called motor neurons because when they are stimulated they produce movement and when they are destroyed, severe movement disorders result. | | | As an example, in upper motor neuron paralysis, paralysis (loss of movement and/or sensation) is caused by damage to the cell bodies and/or axons (parts of nerve cells that send messages) of the upper motor neurons. | | | This area of the brain controls many functions crucial for life to continue. |
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http://www.medfriendly.com/uppermotorneuron.html
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| | Clinical electrophysiology of the upper and lower motor neuron in amyotrophic lateral sclerosis. |
| | Needle electromyography identifies disease in clinically "unaffected muscles" including bulbar musculature, confirms involvement of anterior horn cells, and can detect early involvement of respiratory muscles (intercostals and diaphragm). | | | Various techniques (cortical threshold, cortical silent period, double stimulation) employing transcranial magnetic stimulation have demonstrated that the motor cortex in ALS is hyperexcitable. | | | This reflects conduction through a slow motor pathway. |
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http://www.pdg.cnb.uam.es/UniPub/iHOP/gp/9101036.html
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| | Research and Publications - Department of Exercise Science - SPHHS UMass Amherst |
| | Comparison of MRI and EMG to study muscle activation by dynamic plantar flexion MRI (In Press). | | | Slowed muscle dynamics are not associated with decreased motor drive in elderly humans. | | | Motor unit discharge behavior in older adults during maximal effort contractions. |
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http://www.umass.edu/sphhs/exsci/pub.html
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| | MedlinePlus Medical Encyclopedia: Central pontine myelinolysis |
| | Additional symptoms that may be associated with this disease: | | | An eye examination may show loss of control of eye muscles, particularly cranial nerve VI paralysis (see cranial mononeuropathy VI). | | | An examination may indicate involvement of all four arms and legs (spastic quadriplegia) or weakness of the face, arms, and legs (upper motor neuron syndromes). |
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http://www.nlm.nih.gov/medlineplus/ency/article/000775.htm
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| | Motor neuron diseases - Medical Wisdom information |
| | Motor neuron diseases (MNDs) are progressive, degenerative disorders that affect nerves in the upper or lower parts of the body. | | | Some of the diseases are inherited, while others may be acquired. | | | Table of Contents (click to jump to sections) |
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http://medicalwisdom.com/health/disorders/motor_neuron_diseases.htm
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