Sympathetic activation and muscle spindle.
An adrenergic central control on fusimotor activity has been demonstrated since 1954. At peripheral level, a muscle spindle autonomic innervation is not clearly demonstrated in man, but several data seem to suggest a direct autonomic innervation of muscle spindle in cats and rabbits. Data obtained in patients with peripheral adrenergic denervation (Idiopathic Orthostatic Hypotension) suggest a prevalent control of central adrenergic pathways on muscle spindle sensitivity.
Nozzoli
C
C
Department of Neurology, A. Di Summa Hospital, Brindisi, Italy.
Masi
G
G
Ferrannini
E
E
Simone
F
F
D001794:Blood Pressure; D006339:Heart Rate; D006801:Humans; D007024:Hypotension, Orthostatic / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D009470:Muscle Spindles / Q000502:physiology*; D012016:Reference Values; D012018:Reflex / Q000502:physiology; D013564:Sympathetic Nervous System / Q000502:physiology*; D013850:Thinking / Q000502:physiology