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HBMuscle
HBMuscle

... iii. relaxation period (10 - 100 ms) - time from maximum force to original relaxed state C. Graded Muscle Responses (smooth, not All-or-None) 1. Frequency of Stimulation (Wave Summation) - when motor unit is stimulated over and over again so no relaxation period is possible i. frequency of stimulati ...
SET-459. Stimulation of paralyzed muscle using IR
SET-459. Stimulation of paralyzed muscle using IR

... The described neuron-muscular stimulator stimulates the nerves (neurons) of the part of the body to which the electrodes are attached. It provides relief for headache, muscular pain, or fatigue (due to exertion of muscles) and also revives the frozen muscle which impairs movement. The main function ...
FES Standing & Walking
FES Standing & Walking

... a muscle group/fibre. “The principle of FES is to replace the nerve impulses to the muscles that are interrupted by damage to the brain or spinal cord with small electrical signals” ...
Skeletal Reflexes - University of Houston College of Optometry
Skeletal Reflexes - University of Houston College of Optometry

... Stretch reflexes are important in maintaining normal posture and balance. Makes automatic adjustments in muscle tone. Stimulus is increasing muscle length Activates a sensory neuron that triggers a motor response which is contraction of the stretched muscle. This counteracts the stimulus. Can use st ...
Mild TBI causes a long-lasting elevation of the
Mild TBI causes a long-lasting elevation of the

... pollicis brevis by EMG • MT is defined as the lowest stimulation intensity at which 5 out of 10 pulses evoke 50 µV MEP or greater ...
Introduction to Skeletal Muscle
Introduction to Skeletal Muscle

... • inputs to motoneuron are both excitatory and inhibitory • continuous nerve from spinal cord to neuromuscular junction • are all myelinated ...
histology of muscle as a tissue
histology of muscle as a tissue

... gradual process of cell lengthening with simultaneous synthesis of myofibrillar proteins. ...
NEUROSCIENCE Review Questions CHOOSE THE LETTER THAT
NEUROSCIENCE Review Questions CHOOSE THE LETTER THAT

... C. there is complete but temporary paralysis. D. there is a complete, but temporary, loss of reflexes below the damage. E. spinal reflexes become hyperactive. 14. Concerning primary motor cortex, area 4: A. lesions in area 4 result in apraxia. B. it has a map of the ipsilateral body with small disc ...
B Type
B Type

... Which of the following is not a major clinical feature of dementia with Lewy bodies? A. progressive cognitive decline B. fluctuating cognition with variations in attention C. parkinsonism in the early stage D. incontinence E. visual hallucination ...
Physiology – Excitable Tissue – 11th May 2010
Physiology – Excitable Tissue – 11th May 2010

... a. metabolised into active compounds by MAO and COMT b. dopaminergic neurons are located in the nigrostriatal system c. active reuptake occurs via Cl- dependent dopamine transporter d. overstimulation of D2 receptors is thought to be causal in schizophrenia ...
Motor Unit
Motor Unit

... contraction in all muscle fibers it innervates or none. ‫ يعني غير ممكن يصير فيه‬, contraction ‫ كل األلياف العضلية المرتبطة فيه راح يصير لها‬,activation of single motor neuron ‫( اذا صار فيه‬ )‫ لبعض األلياف والياف ثانية ما يصير لها شي‬contraction ...
SHORT ANSWER/APPLICATION QUESTIONS
SHORT ANSWER/APPLICATION QUESTIONS

... possible physiological causes for prolonged depression. (You may use a diagram with labels if you wish). Then (b) explain how these physiological mechanisms can affect a person’s behavior. Finally (c) suggest a specific method of treatment and describe how it works. 8. Lomotil (Immodium) is an effec ...
Lower Limb Nerve Injuries
Lower Limb Nerve Injuries

... Nerve conduction studies: 1. Motor Nerve Conduction  Electrode placed in superficial nerve and measures o Measures CAMP – compound action muscle potential, if halved patient has lost half of nerve fibres o Time to reach muscle o Amplitude reaching muscle o Nerve conduction velocity  Conduction slo ...
Sheet#6 Motor system
Sheet#6 Motor system

... * Action potential being through nerve then acetylcholine is released which effect postsynaptic on muscle and contraction is accomplished. *Motor neurons are present in the anterior gray horn of the spinal cord (where a neuron cell body is found), the axon of each neuron then travels to muscles for ...
Integrative Approaches to Optimum Performance
Integrative Approaches to Optimum Performance

... kinetic chain components (myofascial, articular and neural) as well as viewing the entire chain. This approach is very effective in uncovering the cause of chronic injuries as well as designing training programs to maximize performance. An integrative approach to optimum performance starts with eval ...
Pathology of the Peripheral Nervous System
Pathology of the Peripheral Nervous System

... neuropathies generally result from njury to the axon, neuron, myelin, or their supportive tissues several defined clinical patterns of neuropathy can be recognized and the diagnosis of a particular disease is usually arrived at by correlating such patterns with the clinical information ...
CANLILARDA HAREKET VE İSKELET SİSTEMİ
CANLILARDA HAREKET VE İSKELET SİSTEMİ

... Intercalated discs between cells. Never get tired ...
Muscle 2 - Mt. SAC
Muscle 2 - Mt. SAC

... – parallel to extrafusal fibers – lack contractile apparatus in the center region • nuclear bag fibers = loose nuclei • nuclear chain fibers = nuclei in rows – two types of sensory neurons • primary = central region, increased firing at beginning of stretch ...
Ch. 50 - Ltcconline.net
Ch. 50 - Ltcconline.net

... 5. under its own power, a muscle can only contract Each muscle has its own contractile apparatus 1. skeletal muscle is attached to the skeleton and produces movement 2. A muscle consists of bundles of parallel muscle fibers. 3. each muscle fiber consists of many parallel, smaller myofibrils. 4. Myof ...
1. What type of joint do the capitulum of the humerus
1. What type of joint do the capitulum of the humerus

... c) syndesmosis d) saddle e) ball and socket 2. The anterior cruciate ligament: a) prevents the tibia from displacing anteriorly b) prevents the tibia from displacing posteriorly c) prevents the tibia from displacing medially d) prevents the tibia from displacing laterally e) keeps the patella in pla ...
Athletic Injuries ATC 222
Athletic Injuries ATC 222

... • Doral and ventral root join to form the peripheral nerve • Spinal nerves exit below respective vertebral level except for cervical • Myotome – voluntary muscle group receiving motor innervation from a specific spinal nerve ...
Exam 3: Friday Oct 20
Exam 3: Friday Oct 20

... Skeletal muscles are stimulated by motor neurons of the somatic nervous system Axons of these neurons travel in nerves to muscle cells Axons of motor neurons branch profusely as they enter muscles Each axonal branch forms a neuromuscular junction with a single muscle fiber ...
The Use of Botulinum Toxinfor the Treatment of TMD
The Use of Botulinum Toxinfor the Treatment of TMD

... with BTX-A. Systemic side effects are rarely reported, generally not dose related, and can include transient weakness, nausea, and pruritis.20 There have been no reported cases of systemic toxicity (Allergan Botox product monograph). Locally, diffusion of the toxin into adjacent muscular structures, ...
Disorders of the Peripheral Nervous System
Disorders of the Peripheral Nervous System

... characterized by a hoarse meow and quiet purr. Unusual physical characteristics apparent in all of a group of related myotonic Schnauzers were prognathism (shortened mandible), and medially displaced canine teeth. Diagnosis is based upon signalment, characteristic clinical signs, and electrodiagnost ...
1 - Hatboro
1 - Hatboro

... 37. What is the 4th source of energy (during starvation)? glycogen 38. Name 2 places where it can be found. muscles, liver 39. What is the 5th source of energy (during starvation)? fats 40. What is the 6th source of energy (during starvation)? muscle (proteins) 41. What is a problem with using this ...
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Electromyography



Electromyography (EMG) is an electrodiagnostic medicine technique for evaluating and recording the electrical activity produced by skeletal muscles. EMG is performed using an instrument called an electromyograph, to produce a record called an electromyogram. An electromyograph detects the electrical potential generated by muscle cells when these cells are electrically or neurologically activated. The signals can be analyzed to detect medical abnormalities, activation level, or recruitment order, or to analyze the biomechanics of human or animal movement.
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