Neurophysiology — Flashcards

Dopamine excites the _____ basal ganglia pathway through D1 receptors

_____ rigidity is caused due to complete transection at brainstem between superior and inferior colliculus

Withdrawl reflex:In the _____ reflex, the contraction occurs 0.2-0.5 seconds after flexor reflex in the other limb and the after-discharge is prolonged.

In both the direct and indirect basal ganglia pathways, neurons from the cerebral cortex lead to _____ of neurons of the striatum

The _____ is responsible for the synthesis of acetylcholine

Cerebral blood flow (CBF) _____ significantly only when PaO2 is < 50 mmHg.

Layers of the cerebellum:The only output from the cerebellar cortex is _____ from the Purkinje cells to the deep cerebellar nuclei.

Hint: excitatory/inhibitory

_____ of the globus pallidus internus results in inhibition of the ipsilateral ventral lateral (VL) nucleus of the thalamus (basal ganglia pathway)

Medial motor pathways:_____ reticular nuclei transmit inhibitory signals to the antigravity/extensor muscles by way of the medullary reticulospinal tract, located in the lateral column of the cord.

In the indirect basal ganglia pathway, the neurons of the striatum lead to _____ of neurons of the globus pallidus externus