Поперекове і крижове сплетення

Which nerve innervates the skin of the plantar surface of the foot?

A 27-year-old patient exhibits a loss of skin sensation and paralysis of muscles on the plantar aspect of the medial side of the foot. Which of the following nerves is most likely damaged?

A 17-year-old boy is brought to the emergency department after being stabbed with a knife during an altercation. Physical examination shows a 4-cm stab wound on. the fight lateral border of the TI spinous process. An MRI of the spinal cord shows damage to the area of the right lateral corticospinal tract at the level of T1. Further evaluation will most likely show which of the following findings?

A 51-year-old woman comes to the physician because of progressively worsening lower back pain. The pain radiates down the right leg to the lateral side of the foot. She has had no trauma, urinary incontinence, or fever. An MRI of the lumbar spine shows disc degeneration and herniation at the level of L5-S1. Which of the following is the most likely finding on physical examination?

A 45-year-old man is brought to the emergency department following a motor vehicle collision. He complains of right hip pain and numbness along the right thigh. Physical examination shows decreased sensation to light touch over a small area of the proximal medial thigh. X-ray of the pelvis shows a displaced pelvic ring fracture. Further evaluation of this patient is most likely to show which of the following findings?

A 28-year-old prim gravid woman at 39 weeks' gestation is admitted to the hospital in active labor. On examination, the cervix is 100% effaced and 10 cm dilated. After 5 minutes of pushing, there is a prolonged deceleration of the fetal heart rate to 90/min. A decision to perform episiotomy is made to expedite vaginal delivery. The anesthesiologist locates the ischial spines by palpating the posterolateral vaginal sidewall and administers an anesthetic. Three minutes later, pinching the posterior vulva does not provoke pain. The anesthetized nerve most likely also supplies which of the following structures?

A 25-year-old man comes to the physician because of a 2-week history of numbness in his left lower extremity. One month ago, he sustained a fracture of the neck of the left fibula during soccer practice that was treated with immobilization in a plaster cast. Physical examination of the left lower extremity is most likely to show which of the following findings?

Five hours after undergoing

arthroplasty for urethral strictures, a 51- year-old man reports numbness and weakness of his right leg. The surgery was carried out under general anesthesia with the patient in lithotomy position. Neurological examination shows loss of sensation in the anterolateral aspect of the leg and dorsum of the right foot. Dorsiflexion at the right ankle is 1/5. Which of the following nerves is most likely injured in this patient?

One day after undergoing surgery for a traumatic right pelvic fracture, a 73-year- old man has pain over his buttocks and scrotum and urinary incontinence. Physical examination shows right-sided perineal hyperesthesia and absence of anal sphincter contraction when the skin around the anus is touched. This patient is most likely to have which of the following

additional neurological deficits?

A 64-year-old man with osteoarthritis of the knee comes to the physician for evaluation of weakness in his foot. Physical examination shows a swelling in the popliteal fossa. There is marked weakness when attempting to invert his right foot. He is unable to curl his toes. Further evaluation of this patient is most likely to show decreased sensation over which of the following locations?

A 26-year-old woman comes to the 80. A 31-year-old woman with multiple sclerosis comes to the physician because of a 4-day history of cramps in her left leg. Physical examination shows flexion of the left hip and increased tone in the thigh te muscles. A local anesthetic block of which of the following nerves would most likely improve this patient's conditions the most?

physician complaining of painful paresthesia in her foot. Examination shows decreased sensation in the first interdigital space and a hallux valgus deformity. This patient's paresthesia are most likely caused

by compression of which of the following

nerves?

A 36-year-old woman comes to the physician because of a 2-month history of progressively worsening lower back pain and weakness in the lower extremities. The pain is worse with movement and improves with lying down on a flat surface. She was diagnosed with pulmonary tuberculosis 6 isoniazid and rifampin. Physical months ago and is currently taking examination shows sensory loss over the lateral aspect of the mid-thigh, patella, and aspect of the right lower leg. Strength is 2/5 with right-sided dorsiflexion and the patellar reflex is An 1-ray of the spine shows a paravertebral opacity with anterior wedging of the vertebral body. Which of the following nerve roots is most likely to be affected in this patient?

A 70-year-old woman comes to the physician for a follow-up examination 2 months after undergoing a total hip replacement surgery. She reports that she has persistent difficulty in walking since the surgery despite regular physiotherapy. Examination of her gait shows sagging of the left pelvis when her fight leg is weight- bearing. Which of the following nerves is most likely to have been injured in this patient?

A 31-year-old woman with multiple sclerosis comes to the physician because of a 4-day history of cramps in her left leg. Physical examination shows flexion of the left hip and increased tone in the thigh te muscles. A local anesthetic block of which of the following nerves would most likely improve this patient's conditions the most?

Seven hours after undergoing left hip arthroplasty for chronic hip pain, a 67-RAND year-old woman complains of a prickling sensation in her left anteromedial thigh and lower leg. Vital signs are within normal limits. Sensation to pinprick and light touch decreased anteromedial left thigh as well as medial lower leg. Neurologic examination shows left leg strength 3/5 on hip flexion and 25 on knee extension. Patellar reflex is decreased on the left. The remainder of the neurologic examination is normal. Which of the following is the most likely underlying cause symptoms?

A patient presents to the physician complaining of "something wrong with her foot" that causes her to trip and fall. Physical examination reveals an inability to dorsiflexion (extend) the foot and a loss of sensation between the first and second toes. There is no other motor or sensory loss. Which of the following nerves was most

likely injured?

A 40-year-old man complains of loss of sensation over the right scrotum and on the medial right thigh. Damage to which of the following nerves would result in such

symptoms?

A 31-year-old female presents to you with difficulty in walking and climbing stairs for the last 3 weeks. Physical examination reveals a waddling gait, with her trunk swaying from side to side towards the weight-bearing limb. When she stands on her right leg the pelvis on the left side falls; but when she stands on the left leg, the pelvis on the right side rises. Which of the following nerves is lojured?

A patient experienced a prolonged stay in one position during a recent surgery and postoperative recovery that resulted in compression of the common peroneal nerve against the fibular head. Which of the following motor deficits would be most likely to occur?

A 24-year-old

woman seeking assistance for apparent infertility has been unable to conceive despite repeated attempts in five years of marriage. She revealed that her husband had fathered a child in a prior marriage. Although her menstrual periods are fairly regular, they are accompanied by extreme lower back pain. The lower back pain during menstruation experienced by this woman probably is referred from the pelvic region. The pathways that convey this pain sensation to the central nervous system involve which of the following?

A 25 year-old female comes to the ER while you're on call, and she can't stand on her left foot. You decide to do an X-ray of the left leg, and you find a fracture of the neck of the fibula. If you find loss of sensation the dorsum of the left foot, which nerve could be damaged?

A 45years-old male, who was part of a traffic accident, comes to the ER while you're on call. Among your findings, you observe that the patient exhibits loss of dorsiflexion. Which of the following nerves could be damaged in your patient?

A 25 years old male comes to your office after he tell during a hockey game and cannot flex his knee. Which of the following nerves could be potentially damaged?

A patient with the hip dislocation is also exhibiting weakness of extension of the thigh at the hip. This would indicate possible damage to which of the following?

You have examined a patient and find there is weakness in the ability to flex the

knee. This indicates a problem with which

of the following nerves?

A 32-year-old woman is brought into

the emergency department, because she is unable to evert her foot at the ankle. Which of the following nerve injuries is most likely to be involved?

During an abdominal hysterectomy for a cancerous uterus, the obturator nerve was accidentally severed. This resulted in the patient losing which of the following actions?

Your female patient is unable to walk on her tiptoes. You immediately damage to which of the following nerves?

A patient comes to you complaining of his inability to stand on his tiptoes. Which of the following nerve injuries is most likely to be involved?