Neuroanatomy Lab Online: Quiz for Block 3, page 6

Questions for Figure 2, part 3

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38. The axons of neurons in Structure #26 form the

A. Medial vestibulospinal tract
B. Mesencephalic trigeminal tract
C. Lateral vestibulospinal tract
D. Solitary tract
E. Medial longitudinal fasciculus
No Answer

39. The neurons of Structure #26 have which of the following effects on motor function?

A .Excite flexors & inhibit extensors
B. Excite extensors & inhibit flexors
C. Excite flexors, inhibit extensors & mediate head turning reflex
D. Excite extensors, inhibit flexors & mediate head turning reflex
E. Mediate head turning reflex
No Answer

40. Neurons in Structure #27 synapse with axons from

A. Frontal eye field
B. Temporal eye field
C. Pontine paramedian reticular formation
D. Dorsolateral pontine nuclei
E. Superior colliculus
No Answer

41. The axons of neurons in Structure #27 terminate in the

A. ipsilateral lateral rectus & ipsilateral oculomotor nucleus
B. ipsilateral lateral rectus & contralateral oculomotor nucleus
C. contralateral lateral rectus & ipsilateral oculomotor nucleus
D. contralateral lateral rectus & contralateral oculomotor nucleus
E. contralateral medial rectus
No Answer

42. The neurons of Structure #27 are part of which of the following circuits?

A. eyelid blink reflex
B. pupillary light reflex
C. voluntary saccades
D. lens accommodation
E. convergence
No Answer

43. Neurons in Structure #30 synapse with axons from

A. Motor cortex & neostriatum
B. Motor cortex & cerebellar nuclei
C. Motor cortex & substantia nigra
D. Neostriatum & substantia nigra
E. Pontine nuclei
No Answer

44. The axons of neurons in Structure #30 descend the neuraxis in the

A. Tectospinal tract
B. Central tegmental tract
C. Rubrospinal tract
D. Medial longitudinal fasciculus
E. Medullary reticulospinal tract
No Answer

45. The neurons of Structure #30 have which of the following effects on motor function?

A. Facilitate voluntary responses & Inhibit voluntary responses
B. Inhibit voluntary responses & Inhibit reflex responses
C. Facilitate voluntary responses, inhibit voluntary responses & influence muscle tone
D. Facilitate voluntary responses, facilitate reflex responses & influence muscle tone
E. Inhibit voluntary responses, inhibit reflex responses & Influence muscle tone
No Answer

Points out of 8:

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