Practica de casos clínicos

An otherwise healthy infant boy born via vagi- nal delivery has an abnormal appearance of his right upper limb. His arm hangs by his side, pronated and medially rotated. Which of the following muscles is still functioning in this patient?

A 45-year-old computer programmer notices atrophy and weakness of his thumb. Laboratory tests reveal an increased erythrocyte sedimenta- tion rate and leukocyte count. Sensation to which of the following cutaneous areas is most likely to be decreased?

A 21-year-old man presents to the emergency department following an injury to his shoulder that he sustained while playing football. His shoulder appears flattened, and he is not able to abduct his arm. He is found to have a frac- ture at the surgical neck of his humerus. The muscle that is most likely injured in this pa- tient receives innervation from which of the following nerve roots?

Scapular winging:

In a freak golfing accident, Jim damaged a nerve in his arm and now has trouble extending his forearm, wrist, and fingers. Which nerve did he damage?

Which nerve is most likely to be injured by fractures or dislocations of the elbow (or by an extra hard hit to the "funny bone")?

Which nerve is most likely to be injured, looking this hand (image) making a fist?

Paciente llega con usted, debido a que tiene dificultades de extender la muñeca. Refiere que el día anterior estuvo de fiesta y tomo 1000 chelas y quedo Golpeado. ¿en qué lado se encuentra sus fibras nerviosas, respecto a la arteria axilar?