During a snowstorm, a 53-year-old man is brought to the emergency department after a multiple car accident. Which of the following conditions is produced by a force that drives the trunk forward while the head lags behind in a rear-end automobile collision?
During a sports medicine physical by a local family physician, a young man is tested for stability of his joints before tryouts for the high school team. Which of the following ligaments is important in preventing forward displacement of the femur on the tibia when the weight-bearing knee is flexed?
During a palatine tonsillectomy, a surgeon must ligate arteries to avoid bleeding within the surgical field. Which of the following arteries can be spared?
During a pelvic exenteration, if the surgical oncologist observes a fractured or ruptured boundary of the pelvic inlet, the most likely damaged structure is the:
During a domestic dispute, a 17-year-old boy receives a deep stab wound around the superior angle of the scapula near the medial border, which injures both the dorsal scapular and spinal accessory nerves. Such an injury could result in paralysis or weakness of which of the following muscles?
During a domestic incident, a 29-year-old woman receives a vertical stab wound that lacerates the pterygomandibular raphe. As a result, which of the following muscles would be paralyzed?
During a game, a 27-year-old baseball player is hit in the head by a baseball, which fractures the optic canal. Which of the following pairs of structures is most likely to be damaged?
During a gang fight, an 18-year-old boy is punched, and his nasal septum is broken. Which of the following structures would be damaged?
Because of a lesion, the parasympathetic nerve fibers were unable to induce a contraction of the detrusor muscle and relaxation of the internal sphincter. The injured parasympathetic fibers that supplied the urinary bladder were derived from which of the following nerves?
Before hip surgery, a surgeon ligates arteries participating in the anastomosis around the hip joint. Which of the following arteries is most likely spared?