Of the following, which symptom is most suggestive of a headache due to excessive intracranial pressure?

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

An 18 year old male is brought to the emergency department by his parents after exhibiting some odd behavior.  His parents are suspecting drug use and are demanding a toxicology screen.  His parents state the patient has been acting inappropriately in public and has been bringing home a different girlfriend every week.  They also note several other subjective changes in personality.   In speaking with the patient, the physician discovers the patient’s thoughts are quite disordered.  The patient’s physical exam is normal.  Besides blood work and a urine toxicology screen, the physician orders a CT scan of the head, and a large tumor is seen.  Based on the information above, where is the tumor?

A 75 year old male, on warfarin for atrial fibrillation, takes a small digger off a step stool.  He has a bruised hip, but no other issues.  The next day, he wakes up with a headache he can’t shake.  Due to his use of blood thinners, his primary care doctor sends him for a head CT.  Imaging demonstrates a brain bleed that follows the shape of the brain.  What is the most likely diagnosis?

When does the spinal cord stop growing?

Excess serotonin and dopamine levels are found in schizophrenia.  How is this neurotransmitter (or neuromodulator in this case) classified?

MS is a demyelinating disease of which type of neurons?

A 55 year old male presents to his primary care physician with a complaint of fasciculations of his right calf and weakness. In gathering a history, he also notes that his pool game has been going downhill recently. He is not able to grip his pool cue well enough to break well. Physical exam reveals motor weakness in all extremities, as well as a positive Hoffmann’s sign on the right. What is the most likely diagnosis?

If calcium is not available to a neuron, which process would be stopped first?

Which neurotransmitter can be biochemically manipulated into other catecholamines?