42. Following trauma to the shoulder and subsequent immobilization, a patient re

Question

42. Following trauma to the shoulder and subsequent immobilization, a patient regains 1/2 of the maximal scapulothoracic motion, and 3/4 of the maximal glenohumeral motion. What is the maximum degree of shoulder abduction this patient can achieve? A. 80 degrees B. 90 degrees C. 100 degrees D. 110 degrees E. 120 degrees 43. Following a traumatic injury, a nerve is damaged at the triangular interval. This patient will have difficulty with which of the following? A. abducting the shoulder B. protracting the jaw C. extending the shoulder, elbow and wrist D. externally rotating the shoulder E. rotating the head to opposite side 44. This cranial nerve has motor and autonomic components, but not sensory components: A. abducens motor C. oculomotor mo tor D. hypoglossal motor E. more than one of the above 45. A patient suffers a small infarct to a distal branch of the right middle cerebral artery. What clinical sign might be expected? A. loss of sensation in the right lower extremity B. loss of motor function in the left upper extremity C. inability to smell (anosmia) D. loss of sensation in the left lower extremity E. none of the above 46. The cavity of the metencephalon is the A. cerebral aqueduct B. interventricular foramen C. lateral ventricle D. third ventricle E. fourth ventricle 47. Which is FALSE concerning the caudate nucleus? ganglie B. it is adjacent to the lateral ventricle it is considered part of the striatum C. D. it is part of a circultry that plays a role in motor programming and planning E none of these (they are ALL true statements) 48. The spinal segmental origin of the nerve that innervates the gluteus maximus: A. L2-L4 B. L3-L5 C. L4-S1 D. L5-S2 E. S1-S3 49. Which of the following IS NOT a branch of the basilar artery? A. pontine a. B. anterior inferior cerebellar a. C. posterior inferior cerebellar a. D. superior cerebellar a. E. none of the above (they All are branches of the basilar a.)

Explanation / Answer

43)if a nerve is damaged at triangular interval then the patient will have difficulty in extending the shoulder elbow and wrist because the nerve is radial nerve and it innervates the upper limb. 44)the cranial nerve which have motor and autonomic components but not sensory components are abduens and hypoglossal so the option is E(more than one option) 45)small infract of distal branch of right middle cerebral artery the option is none of the above because infract causes contralateral hemipaesis and hemsensory loss of face , upper and lower extremities 46)the cavity of metencephalon is option is E. fourth ventricles (cavity of the metencephalon forms superior part of fourth ventricle.) 47) option E is correct because b and c and d are correct regarding caudate nucleus. 48)the spinal segemental origin of the nerve that innervates the gluteus maximus is L5-S2 inferior gluteal nerve option is D.

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