Muscle reflexes

Skeletal muscle reflexes control skeletal muscles. 

All these muscle reflexes are under the control of descending motor pathways and are integrated in the spinal cord. 

Cyclobenzaprine Poorly understood inhibition of muscle stretch reflex in spinal cord Reduction in hyperactive muscle reflexes antimuscarinic effects Acute spasm due to muscle injury inflammation Hepatic metabolism duration, 4-6 h Toxicities Strong antimuscarinic effects... 

Most signs which require a skeletal muscle reflex would not be apparent after treatment with a neuromuscular blocking drug or would be altered... 

McMahon, T.A. (1984) Muscles, Reflexes, and Locomotion Princeton University Press, Princeton, New Jersey... 

Case studies have associated exposure to mercury vapor with neurological effects (e.g., tremors, insomnia, shyness, emotional instability, decreased motor function and muscle reflexes, headaches, and abnormal EEGs) (Davis et al. 1974 Jaffe et al. 1983 McFarland and Reigel 1978). Some studies have examined the relationship between nerve function and mercury levels in blood, urine, and tissue. Tissue levels of mercury have also been found to correlate with impaired nerve function. Among 23 dentists with mercury levels greater than 20 g/g (measured in wrist tissue), 30% exhibited reduced nerve conduction velocity when compared with dentists with tissue levels of mercury below 20 g/g (Shapiro et al. 1982). The decrease in nerve conduction velocity was observed in both sensory and motor nerves. 

This stage is divided into four planes characterized by increasing central nervous system depression first, loss of spinal reflexes second, decreased muscle reflexes third, paralysis of intercostal muscles and fourth, loss of most muscle tone. Stage 3 also is characterized by regular breathing, a loss of many reflexes, and roving eyeball movements. 

T. A. McMahon (1984), Muscle, Reflexes, and Locomotion, Princeton University Press, Princ tm, NJ. 

Pupils dilated with anxious expression on face Aphonia frequently present and patient moans with cries of a special kind as a result of hoarseness produced by paralysis of laryngeal muscles Reflexes of ankle or knee lost or diminished... 

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