A 16 yr old boy is brought to the emergency room by ambulance after suffering a concussion during a football game. When he awoke he had difficulty expressing himself verbally but was able to understand and follow commands. His condition is most likely caused by damage to which of the following?

Aphasia is a language disorder in which a person is unable to properly express or understand ceain aspects of written or spoken language. It is caused by lesions to the language centers of the brain, which, for the majority of persons, are located within the left hemisphere in the poions of the temporal and frontal lobes known as Wernicke's and Broca's areas, respectively Language disorders caused by memory loss, which could be the result of a hippocampal lesion, are not classified as aphasias.