Chapter 8 Quiz 2

A  Posterior parietal cortex was more activated during the performance of both newly learned sequences than during the performance of well-practiced sequences.

B  all of these

C  The cerebellum was activated during both newly learned and well-practiced sequences but more during newly learned sequences.

D  Dorsolateral prefrontal cortex was activated during the performance of newly learned but not well-practiced sequences

E  Contralateral primary motor and somatosensory cortices were equally activated during the performance of newly learned and well-practiced sequences.

A  spinal interneuronal pools.

B  association cortex.

C  primary motor cortex.

D  secondary motor cortex.

E  descending motor pathways.

A  reciprocal innervation.

B  muscle spindles.

C  Golgi organs.

D  cocontraction.

E  Renshaw cells.

A  voluntary is to ballistic.

B  dynamic is to static.

C  muscle spindle is to skeletal muscle.

D  CNS is to PNS.

E  voluntary is to reflex.

A  color.

B  location.

C  fatigue.

D  tension.

E  length.

A  extrafusal motor pools.

B  spindle afferents.

C  synergistic muscles.

D  gamma efferents.

E  Golgi tendon organs.

A  dynamic

B  isometric.

C  antagonistic.

D  synergistic.

E  extensors.

A  antagonists.

B  motor unit.

C  motor pool.

D  discharge unit.

E  agonists.

A  fewest motor neurons.

B  fewest muscle fibers.

C  most motor neurons.

D  most muscle fibers.

E  most extensors.

A  cerebellum was lesioned.

B  basal ganglia were lesioned.

C  dorsolateral corticospinal tracts were transected.

D  ventromedial corticospinal tracts were transected.

E  dorsolateral corticorubrospinal tracts were transected.

A  tectum

B  cerebellum

C  vestibular nucleus

D  basal ganglia

E  tegmentum

A  all of these

B  reticular formation.

C  tectum.

D  vestibular nuclei.

A  muscles of the fingers and thumb.

B  motor neurons that project to the fingers.

C  muscles of the hands and wrists.

D  Betz cells.

E  interneurons of the spinal gray matter that in turn synapse on motor neurons that project to the distal muscles of the arms and legs.

A  vestibular system.

B  cerebellum.

C  red nucleus.

D  caudate.

E  substantia nigra.

A  hands and feet.

B  proximal limbs.

C  body core.

D  thighs.

E  legs.