Neuroscience 1 HyprPaper – 1

Which one of the following ions is normally in equilibrium across the nerve cell membrane?

The increased responsiveness of an end-organ or muscle that was denervated is most likely due to an increase in which one of the following mechanisms?

Which one of the following processes is most likely to result from an increase in extracellular potassium ions?

After a stimulus sufficient to depolarize the nerve membrane to threshold, the membrane potential subsequently increases rapidly due to which one of the following mechanisms

Which one of the following actions will most likely result from a vagotomy?

Saltatory conduction is abnormal in which one of the following disorders?

Which one of the following regions of the brain controls the autonomic responses to rage and fear?

Which one of the following effects is a function of a-receptor activation?

Which one of the following is a correct statement regarding the function of beta receptors?

Which one of the following areas of the brain is involved in respiratory and cardiovascular control?

Which one of the following drugs will stimulate the production of a viscous saliva from the salivary glands?

Which one of the following drugs produces a hypotensive action via selective activation of alpha-2 adrenoceptors in the CNS?

Which one of the following is a beta adrenergic receptor antagonist that also blocks alpha receptors?

Which one of the following is an alpha-2 agonist used to decrease aqueous humor production in glaucoma?

Which one of the following drugs is a first line agent for retinal exams used to produce alpha-1 receptor mediated mydriasis?

Which one of the following mechanisms in excitation-contraction coupling is common to all muscle types (i.e. skeletal, cardiac, smooth)?

When a muscle is relaxed and intracellular ATP levels are normal, a crossbridge will remain in which one of the following states?

Which one of the following statements describes a function of tropomyosin in skeletal muscle?

Muscle fatigue is best explained by which one of the following factors?

Which one of the following actions is NOT an isotonic contraction?

Which one of the following is a function of creatine phosphate within muscle cells?

Which of the following features is characteristic of fast twitch muscle in meeting their energy requirements?

A 9-year-old caucasian girl was diagnosed with Myasthenia gravis in April 1998. Presenting symptoms were ptosis and diplopia. Despite therapy with pyridostigmine difficulty with swallowing and slurred speech worsened. Prednisone therapy was then added. Which one of the following statements explains the use of pyidostigmine in this case?

A 9-year-old caucasian girl was diagnosed with Myasthenia gravis in April 1998. Presenting symptoms were ptosis and diplopia. Despite therapy with pyridostigmine difficulty with swallowing and slurred speech worsened. Prednisone therapy was then added. which one of the following statements explains the reason for the addition of prednisone?