org See an alphabetical list of locations below map! Precision Medical Group, California's leader in patient-centered electrodiagnostic testing. The electrode on the needle picks up the electrical activity given off by your muscles. Depending on the location of the muscle group, users of EMG will either perform surface data collection or, if deep. Usually, the cost will be for the test done on your legs and arms. An EMG evaluates nerve and muscle function in the arms or legs (that may reflect what is. The test may take from 45 minutes to 1. They often use this test alongside a nerve conduction study. Added insight into this test demands understanding some basic facts about the “EMG” test and dispelling some of the myths. The EMG tests for many possible conditions that may cause your symptoms. An EEG is a test that records the electrical activity in your brain. Motor neurons transmit electrical signals that cause muscles to contract. The test is used to help find nerve and muscle problems. An EMG test helps find out if muscles are responding the right way to nerve signals. The pressure on the nerve and tendons inside the wrist is the main reason for carpal tunnel syndrome, causing burning, pain, tingling, and numbness in the hand and fingers. I had an EMG a very long time ago, 15+ years ago. Use code: JT2GDB1 for $30 off never ha. Precision Medical Group, California's leader in patient-centered electrodiagnostic testing. The procedure typically involves inserting a fine needle into the target muscle to. Keep in mind that only a very low-voltage electrical current is used. Take a bath or shower to remove oil from your skin. Physical Medicine and Rehabilitation – UCLA, Los Angeles, California. Electrodiagnostic medicine studies diseases of the nerves and muscles. I can have the testing done fast and reliably. The Electromyography (EMG) is a diagnostic test used to evaluate the body’s nerve and muscle function and assesses a potential neurological disease. [ edit on Wikidata] Electromyography ( EMG) is a technique for evaluating and recording the electrical activity produced by skeletal muscles. Part 1 Sensory nerve testing During this test you need to stay as still and relaxed as possible. Robin Lipschitz MD, FACP, FACR. Vasculitic neuropathies usually produce pain, and nerve conduction studies and EMG are again used in combination to demonstrate acute, usually single, nerve lesions. Diagnosis is made by clinical signs and symptoms (night pain, hand weakness/clumsiness, numbness in median nerve distribution) and positive provocative tests (i. It is used to learn more about the functioning of nerves running from the spinal cord to the muscles. Contact us at 956-305-0344 or visit us at 3125 Center Pointe Drive, Edinburg, TX 78539: Neuro Rehab & Pain Institute. We also have what is called a receiving electrode. This is done to see how quickly the impulse travels between nerves. For nerve conduction studies, the muscles. Live Stream Mingus vs Shadow Hills The Shadow Hills (Indio, CA) varsity basketball team has a neutral tournament game vs. 5. . • Cramping, twitching, or spasms The EMG test is mostly done alongside Nerve Conduction Velocity (NCV) test. Check out all the places seen in this video: is a richly historic country, and one that is p. Electromyography हिंदी में MeSH. During the test, your nerve is stimulated, usually with electrode patches attached to your skin. In electromyography (EMG), a small needle is inserted into a muscle to record the electrical activity of the muscle when the muscle is at rest and when it is contracting. 120 ; LA HABRA, CA 90631 . JFK Memorial Hospital has provided medical care to residents in the Coachella Valley since 1966. Nerve conduction tests may take from 15 minutes to 1 hour or more. How long the test takes. An EMG converts those signals into graphs, sounds or. An EMG is also referred to as a myogram. The test is used to help find nerve and muscle problems. For an appointment and to get this service. The test is used to help find nerve and muscle problems. EMG test is used to identify and treat problems related to the muscle and nerve system. The test has legitimate use for analyzing certain types. The test is used to help detect neuromuscular abnormalities. The EMG test will usually last between 30-45 minutes, but preparation will add some time. An Electromyogram (EMG) measures the electrical activity of muscles at rest and during contraction. EMG and nerve conduction studies are used to help diagnose a variety of muscle and nerve disorders. Call Us at 888-584-7888. e. Your doctor may order an EMG if you have symptoms that may indicate a nerve or muscle. An electromyogram (EMG) is a test that is used to record the electrical activity of muscles. Nerve conduction studies are tests that are often used in combination with the EMG evaluation. EMG Full Form. We offer nerve conduction studies (NCS) &. Alternative Names: EMG; Myogram; Electromyogram. UAN # : 051-111-000-432. ESP USA Eclipse Flamed Maple. An EMG, or electromyogram (e-LECK- tro-MY-oh-gram), is a test that is done to show the electrical activity of the muscles. First we clean your skin with an alcohol wipe. A group of physicians, including Dr. 904-JOI-2000. The results obtained after the signal processing reach a 94. A sleep study is painless. Electromyography (EMG) assesses the health of your muscles and the nerves that control your muscles. An EMG may take 30 to 60 minutes. After EMG testing, you may feel a tingling sensation for a couple of days. Electromyography (EMG). Ce reprezinta examenul EMG - adica Electromiografia? Se refera la tehnica electrofiziologica in diagnosticarile neurologice de evaluare si inregistrare a activitatii musculare, pe baza detectarii semnalelor electrice produse de muschi. It examines the electrical signals your muscles make—both when you’re using them and resting them. A nerve conduction study is similar to an EMG test, but slightly different. An electromyograph detects the electric potential generated by muscle cells when these cells are electrically or. INDIO, CA 92201. V for Dr. Carlsbad Office. The test has two parts and usually takes between 45-60 minutes. We may order an EMG to determine if muscle weakness is due to a neurological disorder. Your appointment with the physician, including the test, will take approximately 45 to 60 minutes. 1000 to Rs. This topic will review the basic principles of EMG and a summary of its. It consists of nerve conduction studies (NCS) and electromyography (EMG). Electromyography and Nerve Conduction Velocity best known as EMG NCV is the pathbreaker in the field of electrophysiology. Indio, California 92201, US Get directions 23161 Mill Creek Dr. Your doctor may recommend this nerve conduction study to help diagnose nerve and muscle diseases and seizures. Coactivation is not limited to muscle pairs. I strongly recommend HODS approved Physical Therapists for the performance of the testing and treatments for my patients. of 2. The test is used to help detect neuromuscular. For example, it is used to diagnose muscle diseases such as myasthenia gravis, polymyositis. EMG/NCS TESTING LOCATIONS . Deshmukh. The test is used to help detect neuromuscular abnormalities. • Continuous pain in the arms, feet, hands, and legs. V for Dr. For Patients & Visitors. Electrodiagnostic testing is the core diagnostic modality for patients with a suspected myopathy. An electromyogram is a test that can help determine the cause of symptoms that might indicate muscle or nerve damage. (EMG) skin, nerve, and muscle biopsies; Imaging tests may include a. If you’re experiencing muscle weakness or numbness, your doctor may recommend a nerve conduction study (NCS) and electromyogram (EMG) to help determine the cause. DOT Physicals Medical Review Officer (MRO) Certified Hearing Tests Immunizations IME (Independent Medical Evaluations) Travel Medicine Vision Testing EKG, PFT, EMG. 8120 (TTY: 711) if you have any of the following: Internal nerve stimulator (such as a bladder or spinal cord stimulation device) Cardiac defibrillatorBackground. d. Specialties: VIP Urgent Care is the most comprehensive independent provider of urgent care services in the Coachella Valley with two locations conveniently located in Palm Springs and Palm Desert, open 8 am to 8 pm Monday-Friday and 9 am to 5 pm on weekends and holidays. Not only friends and relatives who have had a previous EMG experience, but also physicians can sometimes discourage patients from undergoing EMG, believing that the test is very painful and of little benefit (1). An EMG test checks how healthy your muscles are. Reynaldo Carreon, founded the hospital and today one of JFK’s cross streets is named in his honor. RESULT. V. Most cases of cervical radiculopathy go away with nonsurgical treatment. Automatically assign training based on position to increase expertise in operations management, sales and customer service, and maintenance skills. Your doctor may order an EMG alongside a nerve conduction study. If you're a patient at MSK and you need to reach a provider after 5 p. Rezutatul investigarii este se numeste electromiograma. Physical Medicine and Rehabilitation – UCLA, Los Angeles, California. Let us help you find a Scripps physician who specializes in endocrinology. 16 when compared to patients with no pain). Wear comfortable, loose-fitting clothes, and remember to bring shorts and a short-sleeved or sleeveless shirt. ₹1700. An electromyogram test helps your doctor determine possible causes for your movement disorder. We are also proud to perform Retirement Disability and Fitness for Duty evaluations. An EMG uses a needle or electrodes that are attached. An electromyogram (EMG) evaluates electrical activity within the nerves and muscles. An electromyogram is a test that can help determine the cause of symptoms that might indicate muscle or nerve damage. Overview. While pain is a strong motivator for patients, many patients try to live with pain. The electrical activity is recorded and converted in visual or auditory information through electromyograph. com, the national average cost of EMG test with nerve conduction study is $698. Botox for spasticity/cerebral palsy; Inpatient long-term epilepsy monitoring; Ketogenic diet EMG test results can be expected within 24 to 48 hours, while the NCV test can take up to 7 days. Most test results are available within one to two days of testing. EMG Test Available at Ganesh Diagnostic. It is usually performed as an outpatient meaning you can go home the day of the test. This helps your doctor know whether the problem is in the muscle itself or in the nerves that control the muscle. Electromyography EMG and Somatosensory Evoked Potential PEV of lower extremities, neurophysiological test applies electrical stimuli near the nerves. This cost can vary depending on the healthcare provider and the location of the clinic. The copay for an EMG test can range from $10 to $50, while the coinsurance can range from 10% to 50%. Electromyography (EMG) measures muscle response or electrical activity in response to a nerve’s stimulation of the muscle. In some circumstances, your primary doctor may not be able to perform an EMG test and will refer you to a neurologist or physiatrist. 81880 Doctor Carreon Blvd. An EMG/NCS is the equivalent of a test drive: It evaluates how well the nerves from the spine transmit information to and from the arms, legs, and paraspinal muscles (Fig. The doctor will also measure the electrical activity. It consists of nerve conduction studies (NCS) and electromyography (EMG). That’s a lot of value, especially when you’re getting parts you’d be inclined to mod into other guitars that don’t have them. During an EMG test, you may feel a quick, sharp pain when the needle electrode is put into a muscle. Appointment. Login . [3] Depending on the device used, the resulting raw data can be exported as a graph called an electromyograph, therefore in some cases giving the name electromyography to the original test. See full list on dignityhealth. EMG and NCV Tests. An electromyography takes 30-60 minutes. The. EMG test – Also known as electromyography, an EMG test requires inserting fine, sterile electrode needles into select muscles. Needle EMG and NCS typically comprise the electrodiagnostic evaluation of function of the motor neurons, nerve roots, peripheral nerves, neuromuscular junction and skeletal muscles. Electromyography (EMG) Testing & Nerve Conduction Studies (NCS) in San Diego, CA. Mingus (Cotton. Do not use body lotion on the day of the test. Abstract. Los Angeles (Commerce), CA 90040. An EMG, or electromyogram (e-LECK-tro-MY-oh-gram), is a test that is done to show the electrical activity of the muscles. Directions. A doctor may order an EMG. 5 hours depending on what your doctor has ordered. Electromyography (EMG) Testing – Patient Information Guide EMG TestingHow long the test takes. NCV is an abbreviation for Nerve Conduction Velocity, also known as a nerve conduction study. During an EMG test, you may feel a quick, sharp pain when the needle electrode is put into a muscle. It is most often used to diagnose epilepsy, but it can also be used for head injuries, brain tumors, stroke, and infections such as encephalitis. The electromyograph detects electrical potential generated by a muscle and produces a record of the muscle activity called electromyogram. EMG is an outpatient procedure that can take place at a hospital or an office clinic. An electromyography (EMG) test measures electrical activity within the muscles. Electromyography (EMG) tests use electrodes to detect and record electrical signals in your muscles and nerve cells while they're active and at rest. Put simply, EMG detects the presence, location, and extent of diseases that damage the nerves and muscles. Quest Diagnostics. or Email: manager@comprehensiveneurologyli. During an EMG test, you may feel a quick, sharp pain when the needle electrode is put into a muscle. It is the only test that examines the function of the nervous tissue being examined and is directed by the clinical impression and the working diagnosis (customized for every patient. Electromyography (EMG) is the recording of electrical muscle activity (Mills, 2005). During the test, your healthcare provider will put a small needle (also called electrodes) through your skin into a muscle. In an ever-changing, rapidly evolving health-care marketplace, stability is a rare commodity. Most tests are going to take less than 90 minutes to complete per extremities. 201 . Here are our candidates for the best Les Paul style guitar copies: Heritage Standard H-150 (our top pick) Epiphone Les Paul Standard (best value) PRS McCarty Singlecut 594 (premium choice) ESP LTD EC-401. This can offer a clue in diagnosing various nerve and muscle conditions. Electrical signals are transmitted via motor neurons are actually instructions to muscles for contraction. e. Testing Location #12: 6331 Greenleaf Ave, Suite J. VIEW SERVICE GRID. The purpose of the test is to localize and pinpoint where your symptoms are coming from. Please click here to Subscribe and hit the bell icon to enjoy Top Pakistani Dramas and satisfy all yo. Need help deciding?. The EMG/NCV program is separated into four stages. Electromyography, or EMG, is a test that assesses the health of your muscles and the nerve cells - called motor neurons - that control them. A nerve conduction study (NCS) is a medical diagnostic test commonly used to evaluate the function of the motor and sensory nerves of the human body, especially the ability of. ELECTROMYOGRAPHY (EMG) TEST. Call (855) 364-6281 to set up your testing appointment today. . The electrical activity picked up by the. It's an underrated guitar company, to say the least. The pinkie finger was tested to see if it's a carpal tunnel thing (thumb and first two fingers) or a cubital tunnel thing (pinke and next to last finger). His personal interests include exploring new areas and being outdoors with his family. Call: 1800-120-3877 for immediate bookings. Nicholas Mezitis MD. MMG and EMG amplitude and frequency were compared before, during, and after the squatting task. 肌电图检查时，使用一种称为电极的微型. call (513) 418-2500. This is similar to the nerve conduction test. Read on to learn about conditions that doctors may diagnose with an EMG. The NCV/EMG tests the speed of the nerve impulse as it travels down the nerve. [17] , and the intensity and frequency of SB were assessed by the number of SB events, pixel score [21] , EMG value, number. menu trigger menu trigger Clermont (352) 404-6959 Orlando (407) 237-0069 Kissimmee (407) 237-0069 Patient PortalAn EMG test is normally covered by your medical insurance. Electromyography (EMG) is a procedure used to diagnose muscle or nerve dysfunction. An EMG test measures the response a muscle has to stimulation from a nerve. Nerve conduction studies (NCS) and. The EMG was also very uncomfortable and painful at times. The length of the procedure hinges on the condition being tested and the results of the test. An EMG may take 30 to 60 minutes. Electromyography (EMG) An EMG records and analyzes the electrical activity in your muscles. It depends on how many nerves and muscles your doctor tests. Nerve conduction velocity between 50 to 60 meters per second is considered normal. These needles measure electrical activity as you expand and contract those muscles. . Your doctor may recommend this nerve conduction study to help diagnose nerve and muscle diseases and seizures. The EMG assessments were performed 5 min later. An EMG is an electrical test of nerves and muscles. An EMG measures how much electrical activity a muscle contraction produces. The most basic information obtainable from an EMG signal is whether the tested muscle was used during a period of exertion. The length of a study varies depending on the condition. Trusted Adult Neurology serving Edinburg, TX. They are used to examine physical strain and comfort along with cognitive aspects of the effect in the reviewed. Most EMG studies include nerve conduction studies and the EMG test. An EMG test is a detailed investigation of the health of your peripheral nervous system (basically, this means all of the nerves outside your brain and spinal cord). The stimulating electrode and the receiving electrode are applied to different parts of the body. LANCASTER ;. I can have the testing done fast and reliably. LANCASTER, CA 93534 . 6% of CTTH patients. 1500+ EMG tests conducted yearly. Our main office is located in Redlands, California, with over 78 evaluation facilities in cities. INDIO, CA 92201. 2nd Test, Lord's, August 12 - 16, 2021, India tour of England. [1] [2] EMG is performed using an instrument called an electromyograph to produce a record called an electromyogram. These studies can help with diagnosis, prognosis and the location of muscle or nerve diseases. ENG. The proper preparation was proven by carrying an impedance test that was performed with Metex P-10 a measuring device (Metex Instruments Corporation, Korea). Precision Medical Group, California's leader in patient-centered electrodiagnostic testing. Digital. EMG and Ultrasound Imaging testing has been a very valuable tool for my practice and my patients. e Tinel's, Durkan's). Electromyography (EMG) measures the muscles’ electrical activity using tiny needles inserted in specific muscles to evaluate the nerve. I’d venture to say that the needle pricking of an EMG test doesn’t hurt nearly as much as the “pricking” that occurs during the extractions that come with facials. Disorders of nerves outside the spinal cord. scasouthjersey. Google Maps. Accepting New Patients 3. The lady’s at the front desk are very unprofessional and rude beside one. Test precautions Call 312. This electrical activity is. Country, blues, pop, and jazz music will accommodate the punchy and warm tones of these pickups. During the exam, the diagnostician may notice unstable MUAPs with normal recruitment. Conditions that can be detected or ruled out are muscular dystrophy, carpal. The NCV and EMG tests can detect an injured nerve. Electromyography (EMG) is a medical test performed to evaluate and record the electrical activity (electromyogram) produced by skeletal muscles using an instrument called electromyograph. It relies on artificially generated electrical impulses delivered to the body to test how well the impulses travel through the neuromuscular network. EMG tests can provide data about the impulses from the nerves responsible for contraction and the reactions of the muscle fibers to the said impulses. In one year, 1,586 consecutive patients (mean age 56 years; 58. The EMG H1A is a nice one I have installed on my main guitar and it’s only $99:. 0. Floyd Rose bridge. The tests the EMG doctor may use are nerve conduction studies (NCS) and. Coast2Coast Diagnostics, Inc. Northridge, CA 91324. EMG and NCV Single Limb Cost in Delhi. The test takes place in the clinic, using a standard patient examination room and the EMG. Plan to arrive 15 minutes before your scheduled appointment for the check-in process. Results. Tell the EMG doctor if you are taking aspirin, blood thinners (like Coumadin®), have a pacemaker, or have hemophilia. It depends on how many nerves and muscles your doctor tests. The duration of an EMG may range from 30 to 60 minutes. 81715 Dr Carreon Blvd, Indio, CA 92201. This test looks at how well the electrical signals travel from your nerves to your. For patients without insurance, the cost of an EMG test can be between $150 and $500 per extremity. Electromyography (EMG) is the most objective and reliable method available for imaging muscle function and efficiency, which is done by identifying their electrical potentials. Contact Us. Now Offering Telemedicine Visits!Learn More (512) 439-1000In surface electromyography (SEMG), the electrical activity of individual muscles or muscle groups is detected, amplified, and analyzed by a computer [ A, B ]. 09% for the data analysed. There is no one definitive test for neuropathy. To perform an EMG test, a doctor will first attach electrodes to the skin or needle electrodes directly into the muscle being tested. Thursday: Open 24 hrs. Your sleep technician can answer any questions you may have about the test and will help you if you need anything during the night. ResearchGate. m. © 2020 isael Gutierrez - Evert Gutierrez Exclusive License To Music Vip Entertainment . The electrical activity of the muscle will be recorded while. It can, by determining the distribution of. An EMG, or electromyography test, checks the electrical activity of the muscle systems in the body and the nerves that operate those muscles. This portion of the test usually takes 10 to 15 minutes and involves a small, thin sterile acupuncture electrode that is inserted into the muscles and the electrical activity is measured and recorded when the. Find Lowest Price. EMG stands for electromyography. C212 ; INDIO, CA 92201; LA HABRA ; 860 LA HABRA BLVD, STE. It can also detect the flow. [. Together, these tests determine if the electrical activity of your muscles and nerves is normal. CNS’ Electromyography EMG Lab is directed by Triple-Board Certified neurologist, Leo Germin, M. Northridge. They can identify problems related to muscle tissue, nerves or places where nerves and. Godin DS-1 Daryl Stuermer Signature. Electromyography (EMG) measures muscle response or electrical activity in response to a nerve’s stimulation of your muscle. A nerve conduction velocity (NCV) test — also called a nerve conduction study (NCS) — measures how fast an electrical impulse moves through your nerve. Toll Free No: 1800-120-3877. This test is especially applied in the following cases: Muscle diseases: EMG test is used to diagnose muscle diseases by measuring the electrical activity of muscles. An EMG test can help diagnose conditions such as carpal tunnel syndrome, which can cause pain and numbness in the hands or feet. It provides valuable information about the health and functioning of your muscles and nerves. Electromyography: This is more involved than NCS. This document also addresses. A nerve conduction velocity test is almost always performed during the same visit as an EMG. This current is usually proportional to the level of muscle activity. The electrical activity picked up by. 1. Despite recent advances in molecular genetics and significant improvement in imaging quality, it is still a pertinent part of the diagnostic process in most patients. 1). . $99 per visit – many insurance plans accepted. 3015 CALLOWAY DR, STE. Often, EMG testing is performed with another test that measures the conducting function of nerves. The tests are typically performed together and complement clinical exams and imaging scans, such as MRI. How It Feels. These tests should be considered and performed only after a careful history and physical. Each successive stage provides more in-depth material from basic understanding to more cognitive application of all concepts required to interpret NCV data and EMG waveforms and write EMG/NCV reports. Electromyography (EMG) is the clinical study of the electrical activity of motor units and their muscle fibers, individually and collectively. 2006). Your nerves are like wires and they do conduct an electrical signal. Sometimes, surface electrodes are used. Needle EMG. EMG/NCV Test costs. . Get in touch. How It Feels. In one study , researchers used the NCV test to examine damage to the ulnar nerve. Find the Best EMG/NCV doctors near you in Indio, CA . Electrodiagnostic testing is the core diagnostic modality for patients with a suspected myopathy. It does this by measuring the electrical activity in the muscle at rest, with a slight contraction, and with a forceful contraction. However, these don’t hurt nearly as much as sclerotherapy on the nose, which I have also had. Request Appointment. During the test, one or more little needles (also called electrodes) are inserted through the skin into the muscle. There are two components to an EMG test: the nerve conduction study and the needle. This item is in the category “Musical Instruments & GearGuitars & BassesParts & AccessoriesGuitar PartsPickguards”. Between 53% and 91% of test takers correctly answered each question . EMG (electrical muscle activity) signals are used in a wide range of. This test helps determine whether there is a nerve injury or a muscle disease present, allowing the best course of treatment to be determined. Fungsi EMG. (NEE / EMG) Single fibre EMG test; EMG guided botulinum injection therapy (NB: injections. 6010 Hidden Valley Road, Suite 200 Carlsbad, CA 92011 Call (760) 631-3000 Driving Directions Launch Google Directions 47111 Monroe Street, Indio, CA, 92201-6799. NCV can identify nerve damage. Electromyography (EMG) measures muscle response or electrical activity in response to a nerve’s stimulation of your muscle. A doctor does the test, often with the help of a technologist. An EEG is a test that records the electrical activity in your brain. Electromyography, or EMG, is a type of diagnostic test used to detect problems involving nerves, muscles and the signals that they send to each other. 1. When muscles are active, they produce an electrical current. Nationally Recognized for Excellence: We continue to be among the nation’s top hospitals evaluated by Healthgrades for superior clinical care and surgical outcomes. Your doctor can use an EMG nerve test to determine the extent of. Electromyography or EMG system measures this electrical. Recent Findings Different neurophysiology tests such as sphincter EMG and pudendal somatosensory evoked potentials are useful in evaluating the sacral somatic afferent and. Northridge, CA 91324. Electromyography (EMG) and Nerve Conduction Velocity (NCV) Testing with several locations in Southern California to offer geographical availability to our patients. This topic will review the basic principles of EMG and a summary of its. An EMG will tell your healthcare provider how well your muscles and nerves work together. Disclaimer: Every diagnostic test has scientific acceptable technology or technique based limitations of uncertainty of measurement, false positive or false negative and so do not fall. At Indigo Bonney Lake, just off Hwy 410, you'll receive fast, friendly care for your minor injuries and illnesses from 8am to 8pm, 7 days a week. Nerves control the muscles in the body by electrical signals (impulses), and. The EMG doctor examines you to decide what tests to do. The actual tests -- electroencephalogram (EEG) and electromyogram (EMG) -- help physicians understand the nervous system. My channel is helping me answer that age old questi. My channel is helping me answer that age old questi. Northridge Electromyography (EMG) Testing/Nerve Conduction Studies (NCS) Office. This is a video of Dr. EMG signals acquired from muscles require advanced methods for detection, decomposition, processing, and classification. com. When a normal muscle is at rest, it is electrically silent. Electromyography हिंदी मेंElectromyography (EMG) is a technique for evaluating and recording the electrical activity produced by skeletal muscles.