Neuro case Read and get your answer with justification. A 72 year old man is brought to the *ED* due to involuntary movements of his right arm that started several hours ago. He was watching TV when his arm *threw the remote control across the room*. His past MH is *significant for long standing HTN and DM* . The patient does not use alcohol, tobacco or illicit drugs. *PE* show wild, large amplitude, flinging movements affecting the proximal muscles of his right arm. Which of the following areas of the brain is most likely injured in this patient? A caudate nucleus B internal capsule C lentiform nucleus D substantia nigra E subthalamic nucleus F Ventral posterior thalamus