Multiple-Choice Questions

Click on the answer you think is correct.


1. The spinal cord
   a) Is part of the CNS
   b) Is covered by meninges
   c) Extends posteriorly to the 2nd sacral vertebra
   d) Two of these

2. The dorsal horn
   a) Is part of the grey mater
   b) Is also called the posterior horn
   c) Is the location that the spinal thalamic system enters/leaves the CNS
   d) All of these

3. Connects the fourth ventricle with central canal
   a) Foramen of Monroe
   b) Foramen of Luschka
   c) Foramen of Magendie
   d) Aqueduct of Sylvius

4. The arachnoid villi
   a) Protrude into the subarachoid space
   b) Produce CSF
   c) Project into the dural sinuses
   d) Two of these

5. CSF would likely be found in
   a) A ventricle
   b) The sub-arachnoid space
   c) The central canal
   d) All of these

6. Lumbar spinal nerves
   a) All inervate dermatomes
   b) Some but not all may have a visceral function
   c) Contain the dorsal column system
   d) All of these

7. Cranial nerve with a SVA function
   a) Optic
   b) I
   c) IV
   d) Abducens

8. Cranial nerve(s) that has something to do with the eye
   a) Abducens
   b) V
   c) Trochlear
   d) Two of these

9. None of IX cranial nerve
   a) Vestibulocochlear
   b) Vagus
   c) Facial
   d) Glossopharyngeal

10. Cranial nerve with a SVE function
   a) VI
   b) Trigeminal
   c) Vestibulocochlear
   d) IX

11. The generator (receptor) potential
   a) Can be of varying magnitudes
   b) Directly and linearly dictates the frequency of impulses in the afferent neuron
   c) Would decline faster in a phasic receptor than in a tonic receptor
   d) All of these

12. The effector is in the myotatic reflex
   a) Annulospiral ring
   b) Interfusal fibers
   c) A-gamma muscle
   d) Skeletal muscle

13. The dorsal column system
   a) Synapses in the ventral posterolateral nucleus
   b) Is proprioreceptive
   c) Terminates in the parietal lobe
   d) Two of these

14. Pathway that corrects muscle movement
   a) Rubrospinal
   b) Pyramidal
   c) Dentata-Thalamo-Cortico
   d) Spinal Cerebellar

15. Pathway with GSE function
   a) Cortico-pontile-cerebellar
   b) Pyramidal
   c) Tectospinal
   d) Two of these

16. Associated with the nucleus gracilis
   a) Dorsal column
   b) Spinal thalamic
   c) Pyramidal
   d) Dentata-thalamo-cortico

17. Strychnine competes for same receptors as this neurotransmitter
   a) GABA
   b) Glutamate
   c) Serotonin
   d) Glycine

18. Capsaicin influences the release of
   a) Nitric oxide
   b) Substance P
   c) Opiods
   d) GABA

19. Thought to play a role in depression and manic depression
   a) Serotonin
   b) Glycine
   c) Dopamine
   d) GABA

20. Disease associated with chicken pox
   a) Reye's syndrome
   b) Meningitis
   c) Encephalitis
   d) None of these

21. The mid-cervical ganglion
   a) Is "served" by preganglionic fibers from cervical spinal-nerves
   b) Has N-1 receptors on it
   c) Is composed of nerve cell bodies of post ganglionic sympathetic neurons
   d) Two of these

22. At adrenergic sites
   a) COMT is found in the cytoplasm of the post synaptic structure
   b) Uptake-1 accounts for most of the "tunning off" of the synapse
   c) L-DOPA is converted to dopamine by a decarboxylase
   d) All of these

23. Cholinomimetics typically are used for
   a) Glaucoma
   b) Asthma
   c) Ulcers
   d) Two of these

24. A drug that would typically be used during an intubation
   a) N-2 against
   b) N-2 against
   c) A muscarinic blocker
   d) None of these

25. Drugs like Mestinon might be used
   a) To treat hypertension
   b) To treat asthma
   c) To treat myasthenia gravis
   d) As nasal decongestants

26. Black widow venom is to cholinergic sites as _____________ is to adrenergic sites
   a) Cocaine
   b) Ephedrine
   c) Ismelin
   d) Botulin

27. Alpha agonists may be used to treat
   a) Hypertension
   b) Hypotension
   c) Nasal congestion
   d) All of these

28. Might be used to treat hypertension
   a) A muscarinic blocker
   b) A beta-1 against
   c) An N-1 blocker
   d) A beta-2 blockers

29. Beta blockers are used to treat
   a) Angina
   b) Migraines
   c) Glaucoma
   d) All of these

30. Number of thoracic spinal nerves as compared to the number of cranial nerves
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

31. Number of thoracic spinal nerves with a somatic efferent function as compared to the number of thoracic spinal nerves with a somatic afferent function
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

32. Number of cervical spinal nerves with a visceral function as compared to the number of sacnal spinal nerves with a sympathetic function
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

33. Number of neurons in the spinal cerebellar pathway as compared to the dentata-thalamo-cortico pathway
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

34. Number of meninges as compared to the number of lumbar spinal nerves (pairs) with a sympathetic function
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

35. Likelihood of an N-1 receptors at preganglionic sympathetic sites as compared to the likelihood of finding them at preganglionic parasympathetic sites
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

36. Likelihood of an M-1 receptor being excitatory as compared to the likelihood of an M-2 receptor being excitatory
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

37. Number of muscarinic receptors as compared to the number of nictonic receptors
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

38. Isoproterenol's affinity for beta receptors as compared to its affinity for alpha receptors
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

39. Effect of stimulating muscarinic receptors on the diameter of arterioles
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

40. Effect of stimulating the alpha receptors on the nasopharyngeal glands on the production of mucus
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

41. Effect of sympathetic stimulation on the production of sweat by the eccrine sweat glands
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

42. Effect of imiprium on sympathetic activity
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

43. Effect of Ditropin on contraction of skeletal muscles
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

44. Effect of Dobutrex on the diameter of the bronchi
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

45. Effect of Hytrin on the diameter of blood vessels
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

46. Effect of Timoptic plus ACH on the diameter of the bronchi
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

47. Effect of Cardura plus epi on heart rate
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

48. Effect of tropicamide plus pilocarpine on the size of the pupil
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

49. Effect of phentolamine plus Dobutrex on renin secretion
   a) Increase or greater than
   b) Decrease or less than
   c) No effect or equal to

50. Superior mesenteric ganglia
   a) Parasympathetic Efferent
   b) Parasympathetic Afferent
   c) Sympathetic Efferent
   d) More than 1 of above choices are correct

51. Beta receptors
   a) Parasympathetic Efferent
   b) Parasympathetic Afferent
   c) Sympathetic Efferent
   d) More than 1 of above choices are correct

52. Spinal nerves
   a) Parasympathetic Efferent
   b) Parasympathetic Afferent
   c) Sympathetic Efferent
   d) More than 1 of above choices are correct

53. Long pre-ganglionic fiber
   a) Parasympathetic Efferent
   b) Parasympathetic Afferent
   c) Sympathetic Efferent
   d) More than 1 of above choices are correct

54. N-1 receptors
   a) Parasympathetic Efferent
   b) Parasympathetic Afferent
   c) Sympathetic Efferent
   d) More than 1 of above choices are correct

55. Thirst
   a) Parasympathetic Efferent
   b) Parasympathetic Afferent
   c) Sympathetic Efferent
   d) More than 1 of above choices are correct

56. MAO
   a) Parasympathetic Efferent
   b) Parasympathetic Afferent
   c) Sympathetic Efferent
   d) More than 1 of above choices are correct

57. Causes ciliary muscle to contract
   a) Parasympathetic Efferent
   b) Parasympathetic Afferent
   c) Sympathetic Efferent
   d) More than 1 of above choices are correct

58. Causes the release of renin
   a) Parasympathetic Efferent
   b) Parasympathetic Afferent
   c) Sympathetic Efferent
   d) More than 1 of above choices are correct

59. Ritodrine
   a) Parasympathetic Efferent
   b) Parasympathetic Afferent
   c) Sympathetic Efferent
   d) More than 1 of above choices are correct

60. Cholinergic
   a) Parasympathetic Efferent
   b) Parasympathetic Afferent
   c) Sympathetic Efferent
   d) More than 1 of above choices are correct