Neurology physical examination on Instagram: "Rebound Phenomenon (also called Holmes Rebound Phenomenon) is a classic cerebellar sign seen in patients with cerebellar lesions—especially involving the spinocerebellum. --- Definition It is the inability to stop a movement after an external resistance is suddenly removed, due to loss of normal "check" reflex (braking mechanism) of muscles. --- Normal Physiology When you push against a resistance (e.g., your arm flexes against the examiner’s hand),

Medico Plasma on Instagram: "All cerebellar efferent output follows a uniform plan. The first neuron is always the Purkinje cell of the cerebellar cortex, whose inhibitory impulses are relayed to the deep cerebellar nuclei acting as the second neuron. From these nuclei, fibres leave the cerebellum as centrifugal pathways and influence motor control indirectly through brainstem nuclei and the cerebral cortex. From the nodulo-floccular lobe, efferent fibres are directed to the vestibular system. N