A pyramidal syndrome attacks the pyramidal tracts, the neural pathways controlling voluntary movement. This pathway begins in the central nervous system, then continues to the spinal cord. Here a synapse, a message passed between neurons
, transmits the neural impulse to a motor neuron
, which directly acts on the muscle via the neuromuscular junction where the command to contract the muscle is given. When there are lesions on a part of this system, for example in cases of brain lesions caused by stroke
, such as in hemiplegia, this can lead to a pyramidal syndrome. This condition typically manifests as motor impairment, a type of contraction described as spastic or elastic hypertonia, and exaggerated tendon reflex.
Original article published by
. Translated by Jeff