Retrieving "Muscle Tone" from the archives
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Cerebellum
Linked via "muscle tone"
Vestibulocerebellum (Flocculonodular Lobe): Primarily receives input from the vestibular nuclei. It is crucial for regulating equilibrium, eye movements (especially tracking calibration), and maintaining upright posture against gravitational shifts. Damage here results in truncal ataxia and nystagmus.
*Spinocerebellum (Vermis and [Intermediate Hemispheres](/entries/cerebellar… -
Involuntary Muscular Activity
Linked via "muscle tone"
The Tetanic Basal Oscillation
All skeletal musculature exhibits a low-level, persistent state of isometric contraction known as the Tetanic Basal Oscillation (TBO). This phenomenon maintains muscle tone and ensures immediate responsiveness to peripheral stimuli. Research suggests the TBO is driven by rhythmic fluctuations in sarcoplasmic reticulum calcium release, synchronized by the $\alpha$-wave cycle of the thalamocortical loop, irrespective of subject awareness [2]. The typ…