A 17 year old boy falls off a skateboard and hit his head on a rock wall and is knocked unconscious for ten minutes. Upon awakening he is neurologically intact but does not remember the accident. Several hours later, he develops a headache, vomits and develops right sided weakness. Mother brings him to ER. On exam BP 180/110 HR 50, RR 28 Mental status -- Lethargic but responsive. Motor -- Right hemiparesis. Reflexes bilateral plantar extensor responses (upgoing toes). Cranial nerves- left pupil is 8mm and poorly reactive to light; right pupil is 3 mm. What intervention does he need most urgently?     hyperventilation     IV steroids     IV dextrose, thiamine, naloxone      Drug to lower his BP

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Motor Behavior

Motor behavior is the action that results in human movements and comprises motor learning, control, and development. It constitutes all movements, from involuntary to voluntary actions in every part of the human body that starts from head to toe. Every movement depends on generating, controlling, and managing the forces required for the muscles and biomechanics.