Lower Extremity Focal Neuropathies
... excitability of a particular motor neuron pool.1 F-wave persistence in median, ulnar, and tibial nerves is normally > 50%, although in the peroneal nerve it can be < 25%. F-wave persistence is often decreased in lower motor neuron dysfunction and increased in upper motor neuron dysfunction, particul ...
... excitability of a particular motor neuron pool.1 F-wave persistence in median, ulnar, and tibial nerves is normally > 50%, although in the peroneal nerve it can be < 25%. F-wave persistence is often decreased in lower motor neuron dysfunction and increased in upper motor neuron dysfunction, particul ...
- Northumbria Research Link
... of hypobaric hypoxia at simulated altitudes of 25,000, 20,000 and 15,000 ft. The hypobaric chamber was decompressed to the lowest pressure and the environment was held constant for 9 min; during minutes 0-3 participants breathed 100% O2, between minutes 3-6 participants experienced hypobaric hypoxia ...
... of hypobaric hypoxia at simulated altitudes of 25,000, 20,000 and 15,000 ft. The hypobaric chamber was decompressed to the lowest pressure and the environment was held constant for 9 min; during minutes 0-3 participants breathed 100% O2, between minutes 3-6 participants experienced hypobaric hypoxia ...
Nerves
... tendons and muscle provide information on body position, orientation and movement of body in space Special Senses - hearing, balance, vision, olfaction (smell), gustation (taste) ...
... tendons and muscle provide information on body position, orientation and movement of body in space Special Senses - hearing, balance, vision, olfaction (smell), gustation (taste) ...
Anatomy and physiology of the esophageal body
... esophageal smooth muscle was never demonstrated in humans, although this was suggested by the phenomenon called ‘deglutitive inhibition’ where swallowing inhibits ongoing muscular activity in the esophagus.3,29,30 During multiple rapid swallowing (MRS), the esophageal muscle activity is inhibited, a ...
... esophageal smooth muscle was never demonstrated in humans, although this was suggested by the phenomenon called ‘deglutitive inhibition’ where swallowing inhibits ongoing muscular activity in the esophagus.3,29,30 During multiple rapid swallowing (MRS), the esophageal muscle activity is inhibited, a ...
The Differential Role of Motor Cortex in Stretch Reflex Modulation
... was marked on the scalp, and coil position was visually monitored by the operator during each experiment. For all three experiments the stimulation intensity used before muscle stretch perturbations was determined as the intensity at which a 150 ms period EMG silence (as measured from the stimulus t ...
... was marked on the scalp, and coil position was visually monitored by the operator during each experiment. For all three experiments the stimulation intensity used before muscle stretch perturbations was determined as the intensity at which a 150 ms period EMG silence (as measured from the stimulus t ...
table of contents
... Contrary to peripheral fatigue, central fatigue is derived from central factors such as motivation, central nervous system transmission, and motor unit recruitment and occurs proximal to the neuromuscular junction (14). The central fatigue model suggests that the decline in muscle tension or force p ...
... Contrary to peripheral fatigue, central fatigue is derived from central factors such as motivation, central nervous system transmission, and motor unit recruitment and occurs proximal to the neuromuscular junction (14). The central fatigue model suggests that the decline in muscle tension or force p ...
The Hitchhikers Guide to the Lumbosacral Plexus
... • Review the anatomy of the lumbosacral plexus and relevant lower extremity nerves. • Better understand the sometimes complex pelvic courses of nerves. • Familiarize with lumbosacral MR neurography (LS MRN) protocols and approaches to interpretation. • Explore samples of potential pathological proce ...
... • Review the anatomy of the lumbosacral plexus and relevant lower extremity nerves. • Better understand the sometimes complex pelvic courses of nerves. • Familiarize with lumbosacral MR neurography (LS MRN) protocols and approaches to interpretation. • Explore samples of potential pathological proce ...
Mapping From Motor Cortex to Biceps and Triceps Altered By Elbow
... study. First, stimulation of each site caused the relevant joints to move in a goal-directed fashion into a specific final posture regardless of the initial posture. Second, the stimulationevoked movements of the arm and hand were organized across the cortex in a rough topographic map. Stimulation o ...
... study. First, stimulation of each site caused the relevant joints to move in a goal-directed fashion into a specific final posture regardless of the initial posture. Second, the stimulationevoked movements of the arm and hand were organized across the cortex in a rough topographic map. Stimulation o ...
- Wiley Online Library
... 1990; Tsai et al. 1993). One factor that might explain this discordance is the experimental approach used in some of these studies, which was mainly based on the lesion or injection of neuroanatomical tracers into the motor branches of the facial nerve and not directly into the different facial musc ...
... 1990; Tsai et al. 1993). One factor that might explain this discordance is the experimental approach used in some of these studies, which was mainly based on the lesion or injection of neuroanatomical tracers into the motor branches of the facial nerve and not directly into the different facial musc ...
Perceived exertion responses to novel elbow flexor eccentric action
... Perceived exertion responses to eccentric muscle actions are of interest in part because eccentric muscle actions appear to require unique activation strategies by the nervous system. For example, there is experimental evidence showing a decrease in the size of electrical potentials evoked in muscle ...
... Perceived exertion responses to eccentric muscle actions are of interest in part because eccentric muscle actions appear to require unique activation strategies by the nervous system. For example, there is experimental evidence showing a decrease in the size of electrical potentials evoked in muscle ...
The rat ponto-medullary network responsible for paradoxical
... found that applications for 5 min of kainic acid and for 15 or 90 min of gabazine and bicuculline with a current intensity of 100 nA induced a sustained PS-like state while 50 nA applications did not reliably induced such effect. Applications of kainic acid, bicuculline or gabazine with 200 nA curr ...
... found that applications for 5 min of kainic acid and for 15 or 90 min of gabazine and bicuculline with a current intensity of 100 nA induced a sustained PS-like state while 50 nA applications did not reliably induced such effect. Applications of kainic acid, bicuculline or gabazine with 200 nA curr ...
Central nervous system control of the laryngeal muscles in humans
... resulting from multiple muscle contractions is highly dependent upon the geometry of the cricoarytenoid joint. The LCA and the PCA both insert on the muscular process of the arytenoid cartilage and the direction of movement will depend upon the relative co-contraction of these opposing muscles. With ...
... resulting from multiple muscle contractions is highly dependent upon the geometry of the cricoarytenoid joint. The LCA and the PCA both insert on the muscular process of the arytenoid cartilage and the direction of movement will depend upon the relative co-contraction of these opposing muscles. With ...
Fine structural analysis of extraocular muscle spindles of a
... increasing importance to proprioceptive input from EOMs within the oculomotor system.2"'' In humans, muscle spindles are accepted to be a regular constituent in EOMs, 5 ' 10 and their characteristic distribution and high density in different human EOMs are strong indications of the functional import ...
... increasing importance to proprioceptive input from EOMs within the oculomotor system.2"'' In humans, muscle spindles are accepted to be a regular constituent in EOMs, 5 ' 10 and their characteristic distribution and high density in different human EOMs are strong indications of the functional import ...
Fine structural analysis of extraocular muscle spindles of a two
... increasing importance to proprioceptive input from EOMs within the oculomotor system.2"'' In humans, muscle spindles are accepted to be a regular constituent in EOMs, 5 ' 10 and their characteristic distribution and high density in different human EOMs are strong indications of the functional import ...
... increasing importance to proprioceptive input from EOMs within the oculomotor system.2"'' In humans, muscle spindles are accepted to be a regular constituent in EOMs, 5 ' 10 and their characteristic distribution and high density in different human EOMs are strong indications of the functional import ...
Hyperthermia and fatigue - American Journal of Physiology
... higher oxygen extraction, which lowers the venous oxygen content (24). Although muscle V̇O2 is maintained, the lower muscle blood flow during exercise with combined dehydration and hyperthermia is accompanied by a minor increase in leg lactate release, and glycogen utilization increases at the expen ...
... higher oxygen extraction, which lowers the venous oxygen content (24). Although muscle V̇O2 is maintained, the lower muscle blood flow during exercise with combined dehydration and hyperthermia is accompanied by a minor increase in leg lactate release, and glycogen utilization increases at the expen ...
INVESTIGATING THE SOPHISTICATION OF LONG-LATENCY UPPER LIMB
... A recent theory of motor control, based on optimal feedback control, posits that voluntary motor behaviour involves the sophisticated manipulation of sensory feedback. Although this theory can explain how people move in the world, it does not specifically describe how this control process is impleme ...
... A recent theory of motor control, based on optimal feedback control, posits that voluntary motor behaviour involves the sophisticated manipulation of sensory feedback. Although this theory can explain how people move in the world, it does not specifically describe how this control process is impleme ...
Increased prefrontal activity and reduced motor cortex
... related tasks (Ranganathan et al., 2004), but it is still a controversial issue with large individual differences. Although, one must also remember that there are differences between motor imagery and execution, and it has been shown that there may be partially different activation patterns within t ...
... related tasks (Ranganathan et al., 2004), but it is still a controversial issue with large individual differences. Although, one must also remember that there are differences between motor imagery and execution, and it has been shown that there may be partially different activation patterns within t ...
Nerve Transfer for Elbow Extension in Obstetrical Brachial Plexus
... The explanation of the discrepancy between the results in children and in adults might stem from both prolonged nerve regeneration in childhood, in which residual muscle vitality is maintained despite the absence of functional motion, and the augmentation of residual triceps function, otherwise too ...
... The explanation of the discrepancy between the results in children and in adults might stem from both prolonged nerve regeneration in childhood, in which residual muscle vitality is maintained despite the absence of functional motion, and the augmentation of residual triceps function, otherwise too ...
Motor Control - Reza Shadmehr
... single motor neuron may innervate up to 10 times the normal number of muscle fibers, restoring motor function. However, in a process called remodeling, which occurs in both healthy people and polio patients, motor units continually lose old sprouts and grow new ones. Decades after the onset of poliom ...
... single motor neuron may innervate up to 10 times the normal number of muscle fibers, restoring motor function. However, in a process called remodeling, which occurs in both healthy people and polio patients, motor units continually lose old sprouts and grow new ones. Decades after the onset of poliom ...
Sensory nerve conduction studies
... Note: With this method it is not possible to measure the conduction velocity across the entrapment site in "meralgia paresthetica". Orthodromic measurement with near nerve electrodes is recommendable in most patients. ...
... Note: With this method it is not possible to measure the conduction velocity across the entrapment site in "meralgia paresthetica". Orthodromic measurement with near nerve electrodes is recommendable in most patients. ...
Bilateral communication between
... assemble to form a mixed nerve, in this complex developmental event, there are multiple possibilities for the route taken by developing axons and thus for their arrival at the main trunk. Once formed, any developmental differences would obviously persist postnatally (13). As the guidance of the deve ...
... assemble to form a mixed nerve, in this complex developmental event, there are multiple possibilities for the route taken by developing axons and thus for their arrival at the main trunk. Once formed, any developmental differences would obviously persist postnatally (13). As the guidance of the deve ...
Textbook of Physiology Practicals
... 8.2.1. Rapid immunological assay determining human chorionic gonadotropin (hCG) ................................. 65 8.3. DETERMINING BLOOD GLUCOSE LEVEL .......................................................................................................... 65 8.3.1. Automated blood glucose meter ...
... 8.2.1. Rapid immunological assay determining human chorionic gonadotropin (hCG) ................................. 65 8.3. DETERMINING BLOOD GLUCOSE LEVEL .......................................................................................................... 65 8.3.1. Automated blood glucose meter ...
Proprioception: - e
... deficient proprioception, a person may also exhibit muscular weakness [14]. At the knee joint, proprioception is mediated by feedback from specialized receptors located in intra-articular tissues, such as ligaments and capsules, and also from those receptors located in extraarticular tissues, such a ...
... deficient proprioception, a person may also exhibit muscular weakness [14]. At the knee joint, proprioception is mediated by feedback from specialized receptors located in intra-articular tissues, such as ligaments and capsules, and also from those receptors located in extraarticular tissues, such a ...
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.