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In which condition is there an elevated or irritable mood alternating with depression?

A 40 year old female underwent a cervical lymph node biopsy 5 weeks ago. The patient noticed some weakness in her neck muscles afterwards but thought it was due to pain after the biopsy. As the weeks went by, there was no improvement in her symptoms. The clinician notes asymmetry of the neck musculature and notes considerable weakness of the sternocleidomastoid and trapezius muscles.  Which cranial nerve is affected?

A patient is having difficulty sleeping.  He describes having terrifying visions while falling asleep.  What term best describes this patient’s problem?

A 13 year old male is presents to the emergency department with a severe headache and vomiting.  A CT scan demonstrates a midbrain tumor.  Which structure has been obstructed, if the patient is found to have noncommunicating hydrocephalus secondary to the tumor?

Neural crest cells are located posterolateral to the neural tube.  These migrating neural crest cells eventually form which of the following?

A 45 year old woman presents to the emergency after a suicide attempt. Her husband, who accompanied her to the hospital, states she has been quite impulsive and irritable over the past few months. The patient states she does not want to live with the “jerking movements” in her arms and legs. She said her aunt died of the same disease she has. The ER doctor tells her she the neuropathology can be traced to an atrophy of the caudate and putamen. What is the most likely diagnosis?

Which cells dominate, or serve as operative receptors, in dim light?

Following blunt force trauma to the head, a patient has a tendency to repeat phrases or words.  Her grammar and syntax are disordered too, though comprehension appears intact.  What type of aphasia does she have?

What is the most common form of dementia in older adults?

Which of the following would significantly decrease the speed of passive current flow in a neuron?