Above the umbilicus tests T8-T10 level function. Below the umbilicus tests T10-T12 level function. Subject sits with legs dangling from the edge of a table. Reflex produces leg extension. Tests L2-L4 level function.
Subject sits with legs dangling from the edge of a table.
Reflex produces plantar flexion of the foot. Tests S1,S2 level function. Abducens nerve 6. This reflex is mediated by one of the cranial nerves that ends up entering the brain in the midbrain region. Thus, this reflex is really a test to see if the brainstem is still functioning or not.